Standard Chartered Bank — poor services

Address:

New Delhi, Delhi, 110018

I have taken the credit card from sc bank on their advisor's requests as he promised me that i will 7000 rewards points if i will buy this. Unfortunately i got a lot of embarrassment in returns of that. They fulfilled the promise and when i try to complaint against it, they are asking for the proofs. I just want to tell them i am their customer, i have given the bank account no. And all the details on the customer care call, why don't they check it and use it as a proof. They promised me a lot of call backs, unfortunately nobody called back. Very poor and cheap services, not expected from standard chartered. Not going to take the services anymore