Bad Service

I renewed my contract in Feb 2020 Then covid came and i went onto pre paid Then in September 2021 they decided to re instate my contract I asked then not too as my tourism business is still closed They were not interested They bill me each month for minutes and data that i dont use I have my own wi fi I have been trying to resolve this for 2 months but to no avail I recently posted this on Hellp Peter but nobody contacted me I have been a loyal client for over 20 years and have spent in excess of R500000 over the years But they cant help me All i want is for the billing to stop and a payment plan to pay back the handset They wont help me and have blocked my phone for out going calls even although i am on pre paid