My struggle with my service provider:Telkom

Since April 2021 at the start of my contract with Telkom I experience the same problem every month.In April 2021 I was billed for an amount of R316.00 and it was automatically deducted from my bank account on the 20th of that month.A day or two after that my services was suspended due to money I supposedly owed to them.I explain to Telkom that I ordered a phone on contract through Mondo during February2021 when the phone reached me I found out that the phone was faulty and it was also not the phone I was promised.I immediately contact Mondo the next day and inform them about it.After no agreement was reached on the exchange for another phone I ask them to cancel the contract and return the two devices and simcards without it being used..The issued was sorted after it was determined that Mondo did not forward the cancelation documents to Telkoms financial department .My services than resumed as normal.Again during May I experienced the same problem.I was billed for the amount of R32.00 for May and it was again deducted from my account on the 20th .On the 24th the provider again sent me a message that my service was suspended.I called in and it was found that my account was again supposedly in arrears for the amount of over R3000. As for as i know i do not owe the provider any outstanding money . This cat and mouse game is really made it difficult for me as i am a chronic patient and it is imperative for me to have access to my phone line and cannot afford to be cut off for issued that cannot seemed be solved between Telkom and Mondo.I mention this because I might loose my life because of this ongoing stuggle every month with my