Poor customer service

I have emailed vodacom with no response for over a week and the only message i get from them is a private message in regards to my hellopeter to say its not their problem to fix at this point i must just pay them back the money.

They secretly charge me for 6 months then release a charge fee of R740 randomly in jan and then double it for feb and they decide there is no need to contact this client for further conversation they cant do anything about the enormous amount i must now pay back to them or they will cut my fibre line whenever they feel. Honestly this is just shady business to ignore a customer reaching out to you with a problem whos been paying u diligently for months and now your response is thats just something you have to pay. Theres no ways a missed debit order charge appears randomly in jan for R740 then doubles in feb and thats not shady and all they have told me is its so large because they have beeb charging me since last year but they only showed the charges to me in jan and now they just expect payment without contacting the client and with their call centre agents also refusing to deal with it further just also saying it must be paid.