Anon 3 bought softbank sim from you the second time in one month.The sim only worked for 2 or 3 weeks. Twice, I used only 3GB out of the 10GB stated on the pack when bought.There is no way to call the call centre because it’s a prepaid data plan, not voice plan, so you will need to borrow someone phone to call. I managed to borrow someone phone and I spoke with Rao from the call centre and he said I can ask for the refund from amazon where I bought it from as he cannot help me.Bottom line is, this sim stopped not working after 3 GB