Promises not kept and service unacceptable

I have been struggling to cancell 2 contracts with Vodacom since April 2020. Both contracts was renewed without my consent for another 2 years. I previously complained on Hello Peter and was contacted by a gentleman, Mahali. He was very helpful and got the external company that renewed my contract to contact me. I was promised that i will receive a full refund. This was October! I tried to follow up, but you can only complain via e-mail. The e-mail address supp**** by the Call Centre bounces back as incorrect. To date no credit was received and according to the Call Centre the Ref no i was supp**** is invalid and i have to start the process from scratch again. After months of being patient due to Covid and promises made by Vodacom not being honored i am afraid i will not recommend anyone to Vodacom. I have been a client for mre than a decade.