Hindustan Times — subscription renewal coupons not received

Renewal Coupons for ID [protected] returned back on 9-Oct-2020 for correcting wrong renewal period, but till date did not receive the rectified coupons. Vendor made me pay for the paper put from 17-Jul-2020, due date of my renewal. Renewal was done promptly by me on 16-Jul-2020, still made to suffer. Written many mails to cancel the subscription to [protected]@hindustantimes.com, but no solution nor proper reply received so far.