WorldSIM

Great Experience while order live chat agent rose also help me a lot. I really appreciate his time and effort for the quality service.

Nancy gave me a discount on my order and was really helpful. WorldSIM service has been great so far - everything works everywhere I have tried it

Great customer service through chat on their website. Quickly resolved issue with activating SIM card.

Easy to use and it looks nice. Very practical with its double SIM card slots when you're traveling in different countries.

I purchased sim for Phillipines costing Rs. 1999/- the agent named Gulshan Kumar stopped picking my calls after I made payment. Scamsters!

Submission of documents were not clear for the virtual number activation. Had to call mutiple times to sort out the issue

If you are a UK traveller looking for a SIM suitable for international travel, I strongly advise that you avoid WorldSIM at all costs.
Firstly, the 'free UK mobile number' that they advertise, is not. The number allocated is actually an Isle of Man, Manx Telecom number. IoM is not part of the UK, and therefore any calls to this number are not included in any inclusive minutes. Depending on operator, calls to the IoM number are charged at 50p/min on average.
So in the first instance you have false advertising...
Furthermore, this SIM cannot receive calls from another (UK) mobile number, only landline. The company claim that as it is an international SIM, it needs credit to call it, but that doesn't make much sense. So, secondly, what use is a phone number if noone can call it from another mobile?
In seeking assistance, customer service is poor. Little to no understanding of the product, and particularly the difference between IoM and UK assigned numbers. Written enquiries are seldom answered. Enquiries raised by phone have something like over a 10 working day response time.
In finally being promised a refund on returning the unworkable SIM, this has not been honoured. Companies like this thrive on customers getting fed up trying to claim rather than doing the right thing, and providing the service their glossy websites imply.

UPDATE: Proof of my order, SIM details, proof of agreed refund, proof of return etc have all been sent to WorldSIM several times. Again no response, and then a withdrawal of the refund offer, having received the returned item. Very underhand behaviour. Initial review and rating still stand - avoid.

I got wrongly charged for data usage, as data usage was off on my phone, hence an obvious billing flaw on Worldcom's side. After a month of emailing up and down Worldcom finally recognized my complaint and promised a refund on the 31st of March (CAS-*******-M8S3S7).

We are now in July and they still haven't refunded me, hence I decided to file a complaint under the applicable ADR scheme, as any telco in the UK needs to be registered under an ADR scheme according regulator Ofcom (https://www.ofcom.org.uk/complaints/complain-about-phones-or-internet-services/billing-and-charges).

Worldsim doesn't seem to be registered under any ADR scheme and when I asked support agent Nancy to tell me under which ADR scheme they are registered, she refused to answer me, but only repeatedly told me to sent yet another an email. I had already contacted Worldsim about this several days earlier and they never even answered, neither did they give me the deadlock letter I asked for.

Considering their poor customer support and reluctance to answer any questions related to regulation and dispute resolution, I wouldn't even be surprised if Worldsim deliberately tries to avoid regulatory compliance.

Therefore I highly recommend to avoid this company, even if they wouldn't deliberately try to avoid regulatory compliance, these clowns are highly unreliable and treating their clients with an utter derision.

NANCY helped me very well, had a problem and it was solved almost direct! Thank you very much Nancy!

NANCY was of great help to guide me through all the things needed and info on data bundles and activation

Well satisfied with NANCY and the way she handled my complaint. She was so patient to attend to me very well and answered all my question correctly

Spoke to Annie had a very favourable response and my enquiry and concerns where sortet thank you Annie

Thanks for your great service Annie.
Glad to have my new worldsim card today.
Thanks again for your assistance.
Sameer Kale

The online chat with Daniel was very quick and fixed my APN. The quickest online support and good discount offers too.

Matt K was very proffesional and kind. He gave me the best option and explained me everything in a very good manner. Thanks Matt.

I use my sim in Europe and South America and it works nice I'll recomend that. World Sim has an excellent costumer service Annie help me a lot

Thanks Annie - fast reply and complete information. All information are clear and chat comunication very effective

I picked up a world sim on a KLM flight and set up account in no time with the help from the support of worldSIM. Excellent feedback and service

Online Service was very helpful, was not aware what to choose. The agent give me a good solution. The online Chat Chapp was very Helpful.

It was nice and easy to contact them and to be adviced as to what i need to my upcoming trip. I recommend them!

Great phone company.
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Excelent customer service.
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Mobile phone line on all over the wrold :)

I have never stay or get delay whenever i am with worldsim espcecially with Nancy. She is a good staff and friend and accomodating.

Super site and contacts I will use the product for a cruise around the world, I will tell you when I return