Rbl — credit card misbehaving

Address:

Chennai, Tamil Nadu, 600038

Dear sir,
Im using rbl credit card about two years, and i paid my all bills. I requested the bank to stop the credit card due to unsatisfied customer support and unnecessary taxes and fees on november 2018. The concerned customer care told its stopped, but the card is still active and levied some tax on my tax. After paying full bills of the card i requested the customer support to stop my card but they didn't do it. Still it generating bills without using it.