I am talking about icici amazon cc , ialso have debit card but for debit card discount is capped to 1000, for cc its 1750I've used my ICICI Debit card for mobile purchase an hour back
It wasnt working yesterday , started working today morning, now not working.I think it may work for some users...As per flipkart cc in twitter - "the offer you are referring is a third party offers and are account specific and may be different from one users to other"