Standard Chartered Manhattan Platinum Credit Card — wrong credit card charges

Address:

Kolkata, West Bengal

I am holding a STANDARD CHARTERED MANHATTAN platinum credit card No.: [protected] from 09/11. I have purchased an AC on may-2013 with agreement of amount RS-3333.17 with total 6 installment whereas the entire full payment has been done on 10/06/2013 through VISA power transfer from my axis bank account.

After that transaction I am getting following SMS like
“Hi,the payment for stmt 20/07/13 is due on 12/08/13,Total due:INR [-12,759.95,minimum due:INR
3333.17, please ignore if already aid-team manhattan.”
Though the due amount is negative on next bill another installment charge added with late fee of 500/-.Now my card is blocked. so I contacted to customer care to get the information about the card and explanation of bill but customer care executive told me that the card is blocked cannot check the status.
Please let me know how I can be out of this problem.


Thanks & Regards

Kalyan Dhara