incorrect billing account

i bought my house from my mother and her balance for rates and taxes was paid infull. to my suprise up till this day she still receives statement for an amount of R250.00 every month while i also get my statements for an amount of R500 plus. We have since been handed over to the attorneys. the suprising part is that mother stays in that house all by herself, how is it possible for her to use so much water for it to come up to R500.00. the worse part about our municipality is that no one ever answers the phone and when you happen to get through to someone you are given another number, which doesnt exit or just rings until it cuts off. i am disgusted by this service and this proves that no one cares, yet people gets paid monthly. i want this nonsense sorted out as i have already approached the papers. no one seems to know what is happening...this sucks big time<br> id: ***