Appalling and unfair business practice

Extremely disappointed in Igen. I was a customer since 2021, and have been happy until they changed their debit dates to the 26th of the month, that is when the trouble started. Their new debit date was unfavourable to me as the debit would bounce, of which I called and asked to be moved to EFT since it was reflecting badly on my account but it continued to debit after I cancelled the debit. Now what disappointed me further is the condescending manner in which the finance department spoke to me in like I was not a faithfully paying customer until they changed their debit dates. My biggest problem is them saying I owe R1700 when I had my account suspended because I didn't pay in January. It was not explained to me when I signed my contract that even if my account is suspended, I have to pay when no wifi was used on my side. It is very unfair business practice for them to want me to pay for an account which is on suspension due to a problem I spoke to them about. Mind you, I made an EFT payment in February only for my account to be suspended again. When I signed the contract I was told it would be month to month, and my understanding of month to month is that if I don't pay for a certain month, I will be suspended- rightfully so! But absolutely NOT overdue for wifi that I did not use in the first place. I am utterly frustrated and would not recommend anyone to join this company.