Bay Point Trading - ignoring client instructions

This company continues billing me even after I have on numerous occasions spoken to them on the phone and cancelled our annual subscription. After I realized that they ignore telephonic instructions, I sent an email instructing them that the subscription must not be renewed, after which they side-stepped me, and contacted my business partner, and hassled him so many times that he eventually gave in and accepted the subscription just to get them off his case. I had a call this morning from a sales rep (Rene) from their offices, and went through the whole thing AGAIN - this happens annually, same story - and she admitted that their system shows that I instructed DO NOT RENEW in Jan 2021, but they went ahead anyway. I instructed her to NOT RENEW for this year, an I just received an INVOICE from them for the renewal of the subscription for this year! They clearly ignore instruction from clients.