My account is debited after making a payment on due amount and consultants don't know what they are doing.

Very frustrating company and the consultants don't even know what they are doing. My debit order of R925 was returned on the 31st October 2022 and which I was charged a penalty by Telkom and my bank. My salary was late by a day or 2. I made an arrangement around the 9th or 10th November 2022 to ask if I can make a payment around the 25th of November because and asked if there will be consequences like my account being blocked. I was told that I can pay later because my credit limit exceeds my balance due. Around the 15th of November a debit order was attempted of which my bank charged me R147 even though I was assured that there won't be consequences. My account was blocked thereafter. I was told to email *** to does not bother to read his or her emails. To date I am still waiting for a response from ***. I made a payment just after 16 November 2022 of R1000. I was called by collection and told after making the payment and was told that I owe R1900, how since I was owing R925 and paid R1000, the collector could not explain why. Another debit order of R1900 was attempted on the 25th of November 2022 and my bank charged me R147 even though I made a payment. I call Telkom at 180 and I am told to call collections, collections is a useless department that could not explain how my balance jumped from R925 to R1900. Why should I call collections when Telkom was supposed to inform them that I paid my due amount and therefore they should not debit further. I need the bank charges that my bank made to the value of R294 refunded by Telkom relating to the 15th and 25th of November 2022. I also need Telkom to communicate to collectors about the state of my account.