The sim card I purchased for an Italian holiday did not arrive by the date I requested despite allowing more than 3 weeks. Not a good start. After inserting the sim it wouldn't work. After a number of e-mails back and forth with useless suggestions e.g. insert it into another device which I didn't have, I was advised to post the sim card back. The card was lost in the Italian mail system (allegedly) and despite acknowledgement that the sim card was never activated or used, Prepaidzero refused any refund, partial or otherwise, without the physical sim card. I would not touch them again and have advised 2 friends who have since travelled to avoid them and buy a local sim.