Matrix Beame

I have been with Matrix since 2014. In May 2024 they proposed an upgraded tracking devise which I accepted. they were going to cancel my existing one and replace it with the upgrade. They did come and install as promised. However, end of they billed me for 2 tracking devises. I gave them the benefit of the doubt that they will sort it out. End of June I was double billed again! then I called them to sort it and they accepted the error is on their side. End of June billed me correctly but that made me angry because I have a credit balance with them. I realised it's easy for them to just debit my account than refund me, so i reversed the debit of R300.86 for June. I called them again and they promised to resolve this issue. However I keep getting SMS'es to pay this money. Yesterday one of their consultants called me to arrange this payment and I refused because it is my money! She said she will escalate the matter. I owe them R20 make up for the shortfall and I am willing to settle this. Today another to settle this money! I have 10 years relationship with Matrix and I've never had a problem with them until May 2024! Please sort this out because I will report this matter to the ombudsman and cancel my membership completely!