*** Electricity bill query

We had a prepaid meter installed on the 24th of February 2017. When they removed the meter my husband took a photo. It was confirmed by Unathi Mazibuko from City of Joburg that the reading on the jobcard is the same as the reading on our photo. We were now handed over to lawyers and according to their records it was only registered at the end of April that we are now on prepaid. I borrowed money and paid the R7000.00 odd in full only to receive the next bill of -R150.00 on the Monday and on the Wednesday I received a bill of R3500.00 odd. I lodged queries for which I have two query numbers but up until now I had now feedback from anybody except the lawyers with regards to payment. I now got another notice of disconnection. Is there an email address I can send all the emails to. It should be zero stars.