******** disconnection!!! Pathetic service again

I'm not sure how many times I was overcharged in the years I have been Impact metres. I started inquiring when my account went up to R1400 for September statement. I sent an email where no feedback was provided. I had to follow up. I was told the credit is being processed into my account and that should be done on 07 Oct. I followed up again last week. I was promised they still busy with it. I came back today (18 Oct) I got a disconnection notice and my electricity is switched off. Like, what the hell? If you disconnect me, tell me which amount I must pay. Is it the one reflecting on my statement so that you will credit it back to my account? Or I should thumbsuck the amount? I need my account fixed ASAP and my electricity connected.