The Onyx building Poor service delivery

Very bad experience lately just poor service delivery. I usually pay R172.00 for heated water monthly now all of tthe sudden the price has went from 172 to R650 last month i reported this matter by sending email,phoning the office and even as far as going to the office the matter is still unsolved surely there is someting wrong with heating pipes or someone is not doing their job or even someone elses bill is added to mine i talked to the people at the office the inly thing i was told is to continue to pay the normal rental i have been paying but nithing is done about the bill that keeps on going up every month even thoug there are days without water or even hot water i had been staying here since 2023 this is all new this matter needs to be investigated or else i will be vacating this apartment