ACTIVATION A bit of trouble activating - my own lack of experience - I did not include the oo before the number to use to confirm activation. Called the help number & spoke with Brian - quickly sorted me out

Excellent customer service Thank you to the customer service folks David and Andrew - good information and details on what is the correct sim card for my trip. Thanks also for expediting shipping. Well done OneSimCard.

Happy Ending After an exhaustive month or so on a OneSim Help Desk Ticket trying to determine why my VOIP app did not work on an Android phone, I congratulate the help team for putting up with me. It is not that I don’t like OneSim; I do and have used it for over ten years with great success. When tech things go wrong, I suspect I am not alone in becoming a poor-me bore and a nuisance. Although One Sim did not actually solve my problem, they spent endless time with me trying many solutions. In the end, changing the modem/router in the house had OneSim’s VOIP app working perfectly. In an age where so much of customer service is robotic at best and non-existence at worst, it is great to know that OneSim has real people to keep customers happy and up to tech speed. Thanks guys.

Service Down: Incompetent Response (No Response) I am 70 years old. I use 2FA for this company to access a bank account to transfer funds for a medical emergency. OneSimCard service has been DOWN for two days for 2FA banking. Stuff breaks and that can be excused. What cannot be excused is the poor (non-existent) customer service. No response on phone calls. No response on Live Chat. Warning to potential customers: STAY AWAY FROM THIS COMPANY. Any company that cannot keep lines of communication open when stuff breaks does not deserve your business. It's a DAMN GOOD THING I DON'T HAVE A MEDICAL EMERGENCY AT THIS TIME.

Can't Use Visa or PayPal I have used OneSim for a couple of years. Since day one I have not been able to use my credit cards (RBC Visa and Mastercard in Canada) to buy credits on the Sim account or even buy credits in the 1Simfund. So I have been using Paypal to make payments on their system. However it appears that they are no longer allowing Paypal so it's adios to OneSim. I've never had such a frustrating experience trying to give money to a vendor. UPDATE. After this review OneSim sent me an email explaining that my account information must match exactly what is input on their order system. I have spent hours with my bank trying to correct this and nothing works. I have not had this issue with other vendors in over 30 years of using my Visa cards. Very disappointed.