Lack of promise and communication

In October last year I put a complaint through after my services was suspended because of no payment. So I arrange payment with this guy Patrick and he told me he will remove my overcharged fees as it was not was agreed when I took out the contract with Cell ? 4 months after that my account is still overdue and the want to blacklist me. After almost 10 months of trying to get them to finally fix my account and give me the data package I requested for me as customer did so much to try and phone left Hello Peters even put a request through to get Cell C to fix my account without any help. They staff is so rude if you tell them to listen to the telephone conversation they put the phone down. So maybe it's time to end this misery and just cancel my contract? Since they don't know how to treat a customer and put their services first. What ever happened to customer service?