General FAQs

Yes, WorldSIM SIM cards are 4G, 3G and 2G compatible.

Give friends, family, and colleagues your new number to use whilst you are abroad.
You can also leave a voicemail on your existing phone number giving callers your World SIM number to contact you on.

Alternatively, simply forward your calls from your existing mobile to your WorldSIM number. Please note that call diversion does normally attract a small service charge from your existing service provider. You should check this with them. However it should still work out at a lower cost than receiving a call on your normal mobile number while abroad.

You can avoid roaming charges by using a virtual number, find out more here:

We do charge for calls to Customer Services. Calls are billed as dialled. For Global setting (call back) - it will be charged as a call to the UK from your location. For Call through calls, it will be billed as the cost of calling locally to that country i.e.: Setting: UK Profile Call cost: 7p

Registering your SIM card provides a free credit of £2/$3 as a bonus. Registering your SIM will also give you y access to send help tickets to the Customer Service Department. If your SIM is not registered you will not be able to top up.

Registering gives you access to your online account so you can see itemised billing, set automatic top ups and manage your virtual numbers.

You can also contact customer services via the Contact Us form - Submit Enquiry Form

Please note that SMS service is no longer supported in Nigeria due to network issues in Nigeria.

The US Number provided to the customer after purchasing the USA SIM Card is valid for only 60 days of usage. The number will expire after the allotted time period of 60 days, even if the number is being used by the customer continuously during this time frame.

If the customer wishes to retain the allotted number for more than 60 days, the number should be purchased by the customer before the allotted number expires.

You have an old SIM card, please note that EU profile no longer works, and for EU countries, customers now have to select the Special profile.
Once you have arrived at your destiation, please switch on your handset, and then search on the SIM Toolkit for the SIM location, connect to the correct profile, once done, then try registering to the correct network provider, once done, the network provider should show up on your mobile screen.

Please dial 133 to confirm that your SIM card is connected successfully.  
You can upgrade your SIM buy adding a new one to the basket here once you receive it call customer services to transfer all your credit to your new SIM.

The new SIM has no profile selection as its all automatic and the rates are lower.

It is likely that you are using a new SIM card.
Please note that you no longer require to search or connect to a profile.

Once you arrive at your destination, simply switch ON your handset, and allow 5-10 minutes for the SIM card to connect to the correct profile and search for the strongest network in your area.
Once done, you should see the network provider on your handset screen.

Please note to connect only to the recommended network provider, you may require to manually search for the network provider.

Should you need to access the SIM location menu for troubleshooting purposes please look for the SIM toolkit/services app > select multi account > country selection. The active profile will have a star sign next to it.

If you are using an iOS device the SIM toolkit menu is in your phone settings menu under SIM applications.

Customer Service is available 24*7 at your service to serve your queries.

3 methods to reach customer service:
Via Website 24*7 online chat systems
Via telephone: UK: +44 (0) 20 8819 2557 USA: +1 3233751117 Canada: +1 6478467974 Australia: +6 1283104005 South Africa: +27105006962

From your WorldSIM: Dial 154
Contact us on live chat (bottom right hand corner of the website) 24 hours a day

Yes, it is.
You would be charged as if calling a standard UK Mobile Number and the rates would differ depending on the country you are in.

For complaints, you can write your complaint to [email protected].
Please allow 2 business days to get a response for your complaint.

You can top up online, set an automatic top up in your online account or you can can dial 190 (Free) from your WorldSIM.
Absolutely, your information is protected using Protox Engine and GeoTrust. Payment is processed by SagePay and is under SSL encryption.
All credit is valid for 1 year from the time of recharge. If you do not use your SIM for over a year your credit will be lost and your SIM will expire and you will not longer be able to use it.

Peace of Mind Returns
If you change your mind about your purchase, you can return it to us hassle free within 14 days as long as the packaging in unopened and the product has not been used.  In order to return an unwanted product please contact us using the contact form at the bottom of our contact us page, before you send the product back you must receive a return order number from us and the correct address to send it to. Tell us the reason you are returning the item, your order number and the product you wish to return. The return postage will be your own responsibility, we recommended sending the goods back with tracked or signed for postage as we will not be held responsible if it is lost in the post.  As long as the item you are returning is in the same condition that we sent it to you, we will issue you a full refund, minus any postage costs.

Returning Faulty Goods
In the case of receiving faulty products, we are happy to issue you a refund or an exchange.  Shopping online with WorldSIM gives you the same consumer rights under the Sale of Goods Act as you have when buying in a store.  Initially you will have to pay for the postage return and once we have deemed the product as faulty after testing it, we will either exchange or refund you the cost of the product, the initial delivery charge and the return postage.   PLEASE NOTE: We will only refund the lowest possible tracked postage cost, if you choose to return the product using a one day delivery we will only refund you the cost of standard tracked postage.  You must take reasonable care to ensure products are not lost or damaged in the meantime or in transit.

In order to return a faulty item please contact us first, using the contact form at the bottom of our contact us page, tell us the reason you are returning the item, your order number and the product you wish to return.  We will then five you an order returns number and tell you where to send the goods to be returned.  All our products are covered with a 6 months warranty.

All WorldSIM customers with active sim cards will be charged an MRC (monthly recurring charge) of £1 per month.
The MRC will normally be debited from your credit balance between the 5th and 19th of every month. 
The MRC charge applies to all sims that have been active since first use.
A sim is deemed to be active from the first day it is used to make or receive calls or send or receive SMS messages or use of any data services.
This charge will not be prorated.
Sims that have not been activated will not be charged.
MRC charges will pause when you have a zero balance to prevent a negative balance from occurring. When your balance reaches zero, all sim services will cease until you top up or recharge your sim.

To view Delivery Charges, please go to our delivery charges page.
Any additional charges for customs clearance must be paid by the customer. We have no control over these charges and can't predict what they may be.

Customs policies vary widely from country to country, so you should contact your local customs office for further information. Additionally, please note that when ordering from, you're considered the importer of goods and must comply with all laws and regulations of the country in which you're receiving the goods.

Customs offices in some countries require the importer of goods to provide a particular form of identification before releasing a parcel. As the importer of goods, you may be required to provide the recipient's identification number such as a Unique Identification Number, CPF, or Tax ID.

Auto top up is a unique feature for keeping your balance positive while roaming, where the options for internet surfing is limited.
It triggers once your balance reaches a certain limit that you have set and tops up with the specified amount which you have set, using the card details that you have set up with the system.
Please note that every top up is securely verified before proceeding.

You can activate Auto Top Up while topping up/recharging your SIM card.
Just select Yes, from the drop down of the Auto top up, set the amount and the trigger value.

To Disable your auto top up, you can log into your account, click on your Mobile number and disable your Auto top up.

Alternatively, you can contact Customer Service, provide your WorldSIM mobile number and request them to disable your Auto top up.

Yes, there is a charge for £0.01 for setting up your Auto top up. Onetime charge only.

If you have any further enquiries, please contact us using the Contact Us - Submit Enquiry Form.