Horrible service

Good day, I need to understand what i am being billed for if i am on pre-paid meter? my bill is calculated for R3918.29? if i am on pre-paid? a whole over two thousand for water? is that it? For the fact that i changed to pre paid is because i was getting bills of over 2000 even without using electricity ( out of province) yes, i have been paying impact over R3000 monthly & for what ,i do not know. i honestly feel that you are just over charging me for a reason that is only known by you and that is very unfair. please rectify this month's bill of R3918,29 & for the record, are you honestly telling me that me & my husband we using that much of electricity?? your billing is very unfair and pathetic. & while you at that, please explain the term " African" on my statement & why does my ethnic group has to do with anything on statements/billing cause you have my address? I am very upset right now with your services. I need clarity ASAP