Kotak Mahindra Bank — Status showing active

Address:

Khairathabad

Dera Team,

Previously i have kotak mahendra bank credit card and i settled total amount three years back and they are provided settlement letter also by bank.
Credit card number [protected]
But still it was showing in active i complained so many times to kotak bank but no one can respond.
Mobile:[protected]
Mail: [protected]@gmail.com
Kindly check the attachment of settlement letter by bank for your reference
Please take it and solve my issue asap

Thank you