MTN ZLT X20 router : DISTRESS

Never been so disappointed by cellular network as I have with MTN😨 Problem started when I signed up for this ZLT router, which lead to billing problems, which I’ve been trying to resolve for over 3weeks, I signed up for this M2M contract (for R499) on the 13July, paid R804( which is required beforehand,otherwise contract will not be completed) and I was charged prorate My router was delivered on the 23July, had problems connecting it, until finally on the 26July got sorted, to my surprise they tried to debit my account for R804 on the 26July😨 Fortunately it was unpaid(sadly affecting my credit profile, and the unnecessary charges I had to pay to my bank, and also penalty to MTN) I have been trying to fix this problem with customer care, with no success. On the 16August I get another debit order for R1154,36 now… which also was unsuccessful(meaning the extra charges again)..how it got to that figure nobody can explain.. I immediately called customer care again, the agent(Noxolo)told me the initial payment (R804) was not allocated she will send it to back office and get it fixed, I should wait 48hrs. Before I could get feed back from that request, my service was disconnected on Tuesday ( 20Aug).. so it’s hardly been a month since I’ve been using this line, I called to find out why they disconnected my line, the agent(***) she told me they need proof of payment for the R804 I paid initially, Which I sent to her personal email, I never got response or a mere acknowledgement of receipt of email, Till today my line is disconnected, and nobody is responding to my emails, So it’s been about 3weeks with this router and I have to pay R1154,36.. how is this possible.? The Disney + access is also **** news, I have even stopped asking about it, they said it’s free, yet when I log on it requires me to pay subscription fee, I’ve tried many times and gave up on it… So can I at least get help regarding the billing problem.. Never been so disappointed🙌🏽