I just received this e-mail from IndiGo regarding a booking for next month:
Indeed, a fraudulent charge did appear on my card a few weeks after I bought the IndiGo tickets, so I had the bank send me a new card with a new number. Apparently IndiGo somehow detected that my old card number is no longer valid.
I'm having difficulty understanding what exactly it is they want. How exactly is this e-mail going to "enable us [to] confirm that the credit card transaction made by you is indeed genuine"? What do they want me to do?
And, what does it mean that my booking is "frozen"? Seems scary.
Will it be sufficient to bring my old credit card, with the old number, with me when I check in? Will I be able to check in online?
Can I call them and tell them I don't have the card anymore, so they should refund the money and charge another card instead? This would be useful, as I just obtained a credit card (from a different bank) without a forex fee
. But it would be less useful if they insist on re-booking at current fares, which are higher.