Vodacom is *****ing money from the public

In March 2020 I realized that I was paying for 2 extra lines that I did not sign up for on my contract. I made every possible attempt to contact the customer care centre / call centre to assist me with this. They kept on telling me they will contact me and given Covid lock down etc I was patient. When we got to May and no one has made contact I got a bit hot. Up to this day NO ONE has helped me and have made R1000's for these two lines *******LY added to my account. Once again I attempted today - no answer at any call centre nr - I hold on for 45 min and then gets cut off - I wish I could cancel my contract but that will get me blacklisted! there is NO WAY out - the shop that loaded these extra lines is the one in SOMERSET MALL! POOR SERVICE!