Billing is a mess and so is their service level!

Called them when COVID-19 started and asked to defer payments. They said they are busy looking into it. My statements and invoices then during COVID-19 show zero payment due. Service gets suspended 2 months later. Made arrangement with them. Paid on time. Service reactivated. 1 week later they suspend my service and tell me it is at retentions and legal action pending. Complaints manager asks me to pay half of the required amount. I do this. She then says I paid it into the normal account and not retentions so my line cannot be reopened. Now I have to pay AGAIN to a different account. Double payment...oh and she says it is my fault for not asking what account to pay into. No call center people answering, everything is done on FB chat and is slow. Thankfully my contract ends in 2 months time and then I will move to another provider. Shocking service. Utter confussion, each department doing their own thing. No one talking to the customer, no one helping effectively. Worst experience I have ever seen, had or heard of.