Vodacom bad service

Since January I have been trying to upgrade . as i am on debt review nobody is willing to assist me. I have made over 15 telephone calls and just gets transferred from deparment to department. I have been a loyal customer for 20years and never missed one payment and i even have a letter from debt rescue that says i can afford to upgrade.

I then proceeded to try and cancel my contracts that is due for upgrade where as vodacom also does not assist. They escalated my request and i have recieved no feedback, they also does not want me to cancel my contracts. After a call today to try and cancel my contract they tried to convince me to do a sim upgrade which i do not want. @ ***