Cell C review: Debit order cancelled by you, I am being penalise

So, I was contacted by your Agent sometime time in September/Octomer 2023 to advise I am due for an upgrade on my phone and data contracts. I advise I was not yet ready to upgrade my phone contract, said not a problem, i can upgrade the data contract in the meantime as they were running a special, offering more data at a lower rate - I agreed - this person than proceeded to cancel my debit order facility on the data contract, but did not advise me. I then started receiving "very rude " sms's saying my account is in arears and I will be handed over to Attorneys etc, I called and was told it was sytem generated, not to worry - I am on debit order, again the following month same story - then I was told yes you are now 2 months in arears and will be handed over - I paid via EFT and was assured the debit order was reinstated - low and behold the following month I have the same issue again and am told once again I will be blacklisted, my service suspended etc etc. I find this absolutely unacceptable! why am I being constantly penalised for your incompetence? to top it all off, I went in to your branch last week and was told I had to pay R305.00 upfront to avoid being suspended and I am unable to proceed with my upgrade as I am considered a bad debt. I take huge offence to this! I have never ever been in arears with an account in my life and I am completely flabergasted that I am being treated this way after being a client of Cell C for close to or over 20 years. No One is willing to assist and keeps telling me I would need to wait for 2 to 3 months for the upgrade as I am a bad debt... I would appreciate a response to my mail as I believe I deserve at least that much.