Punjab National Bank [PNB] — False billing on credit card

Address:

New Delhi, Delhi, 110065

My credit card ([protected]) expired on 12/13 and i requested for deactivating my billing account and paid all principal dues with some lpsc (250/-) left. Pnb started charging lpsc on lpsc and didnt settled my bill even after several complaints and even deducted 1400/- from my linked savings ac but it didnt end here and lpsc was again being charged and now amount of 16000/- has been raised. Pls help in resolving my greivance as pnb is not entertaining my complaints