Vodacom is a *******

I have a few personal and business contracts with Vodacom. Vodacom employs staff that *****s your account. You need to check your statement every month. I initially took data contracts for 4 of my grandkids for R99.00 per month. In 2018 the contracts was due for renewal. In 2019 i picked up on my statement I was being charged different prices on the 4 contracts prices up to R499.00 per month. I have been calling Vodacom since then and been requesting them to cancel those contracts but with no luck. In March 2021 I reached my limits when I phoned Vodacom again and told them I wanted them to cancel my entire contracts with them. I later got a call from a lady who said she was the team leader and she said I must not cancel the contracts she will sort the problem out and upgrade the contract and give me 10 + 10 Giggs for R135.00 per month. Today I looked at my statement and found that I am being charged different prices again up to the value of R399.00. I phoned customer care and don't want to give me much information but they confirmed the person that did the upgrade loaded my account with the extras. She could not tell me the persons name all she could tell me was the persons name started with the initial L. This is not accepted cause Vodacom staff phones you and offers you a contract for one price and thereafter they increase your contract without your knowledge and start debiting your account. In my opinion this is blatant *****. Some of us don't bother to go through our statements every month so we don't see these ********** transactions on them. Please can someone from Vodacom contact me and I will like to cancel all my contracts with Vodacom. I am spending over R10000.00 with Vodacom at the moment and I believe this is not the way we should be treated.