Abn Amro — Credit card outstanding and recovery

I have received a phone call from delhi for recovery of rs 9900/- against a credit card which have not been used by me even once since it was issued to me, they threaten to file an fir if the dues are not paid and they also told that they have send me two letters, i have recd no statement of account or reminders of due amount from them since the year 2007, than all of sudden they threatening to file an fir, send statement of account for the amount due so that one can understand what for the amount is due, this all is giving me mental agony. My credit card no. Being [protected], a/c no.[protected]e2331637 the card was issued in 2007