Suit filled (wilful defaulter) written off

Dear all, I was using a credit card of some bank, i used it for more than a year and asked to the customer care over the tollfree no., to close the same- Reason was they would be charging the some annual fee, while at the time of offering it was committed to be free for life time. Problem- I communicated the same to the customer care executive, and expecting to be closed within the TAT while there was no due at all . later a long time i received a call that there is something amount outstanding on my card. While i was assumed as it closed, There were also some reward points worth rupees 500-600 with the credit card. which I was tried to redeemed before the closure. Now the thing in CIBIL report downloaded from paisabazar.com showing the below - Date reported - 30-06-17 Account status - Suit filed (wilful defaulter) and written off Date opend - 10-07-15 Sanctioned amount/ - 31543/- Highest Credit Current Balance - 2240/- Amount over Due - 1693/- Please help and suggest what should I do further in that case- Regards Manish