ICICI bank decided to outsource its rewards headache to imint. Imint is one big pile of screwups and pathetic service. So now you cannot claim your points easily. I somehow was already not much satisfied with ICICI, they have grown too big and now its an unmanaged chaos. I decided to go for ICICI lured by free tickets from bookmyshow and good recommendtation from a friend.
I have now tried ABN, HSBC, ICICI, Citibank and SBI. I would suggest Citibank and SBI., they have been most predictable and trustworthy. SBI is also slightly problematic with points redemption, but citibank has always been very forthcoming with it.