Rbl — UID misused by RBL

I purchased a phone on emi for which I paid through my debit acct. Cash back offer was from Bajaj Finance. I never applied for any card, Bajaj finance desk person used my card to issue RBL supercard. When I received card, i emailed RBL that I have not applied for this card. After a year I got statement to pay membership fees of Rs 1000. Post that delay charges etc have been added. I have written it to RBL about it in detail, yet to get firm reply from them about it. Case ID[protected]. I have asked RBL to produce consent of my card approval.