Fault in metering procedures

I stay at Grand Central Apartments in the Midrand area and I have a big problem with the way things are done. Every time I purchase electricity a 50% is deducted from my purchase for my water account with Protea Metering. This apparently the procedure and process for our apartment building as our water gets measured on a daily basis. My water account needs to be in credit with R200 or more every time I purchase electricity regardless of whether my account is paid up to date or not. Is it fair that we need to keep paying R200 - R300 extra on our water bills every month and the electricity is not even lasting the whole month as expected? This need to be investigated.