MTN is a ****

MTN is such a **** and offers really bad client service I app**** for MTN Wi-Fi month end of Nov 2025 and received my Wi-Fi on Dec. the agreement was that I'm supposed to pay R294 monthly. Month end January they deducted R350x2 instead of R295, only one R350 went through, the other R350 declined. February month end my wifi did not work the whole month. I got them on their social media platform since I couldn't get hold of them via call (automated responses always) they told me i have an outstanding balance of R49, This was 25th of Feb. I paid it. month end they deducted R230. The Wi-Fi only worked for 9 days of March and they sent me an invoice saying I should pay R689. I feel as though this is unacceptable and I no longer want this contract. I contacted ICASA and they instructed me to send the cancellation notice and return the device. The device was returned but they refused to take it back. They said to me I'm supposed to pay before they take it and that they do not know how much I'm supposed to pay as it's not showing on their screen. The continued to say they are gonna keep on deducting. Their invoice went from 689 to 6k from 6k to 8k. now they have handed my account over. I only got their service for 1 month only after that they failed to provide the service even after they deducted money. on top of that they **** and wrote that I earn more than I do. I really need help in resolving this.