I had the same issue. Check with customer care whether international transaction is enabled. If yes, have extra amount more than 15k extra since there are some taxes involved too.
Yes... i was also facing this issue even when my debit card was international. I suggest you to use any private bank credit card, i'm pretty sure it will go through.
Yes... i was also facing this issue even when my debit card was international. I suggest you to use any private bank credit card, i'm pretty sure it will go through.