IDFC Bank — My Flipkart Paylater Has been Banned Permanently

My flipkart pay later has been banned permanently as i have paid all my paylater emis on time how can they do this to customer that is loyal to them their executives are saying that this is due to new internal rules that we can tell you atleast tell me the rule by my which account has been banned this is a personal issue it will declare me as a bad image in market that it will be a great damage to my image after paying all dues on time .