I would like to log a complaint about Johannesburg Water Department

I would like to log a complaint about Johannesburg Water Department. Every 3 days at no 1477 Molefi Street Old Dobsonville we are faced with a sewerage blocking. On Christmas day when people were celebrating, I had to sweep in our yard all kinds of stools, plastics, diapers, tissues and all the kinds of filth that a person can think of. Like I say it happens every 3 days that's the kind of life we're facing. I have Ref numbers with regards to that and I asked them to find the fault and resolve the problem once and for all. Today now the sewerage is in the kitchen. We can't live like this, this is totally unhealthy and when you try to make a call to their Call Center to report the fault you get a response only after after 4 hours and they so unprofessional. I just want to be helped in order to live In a healthy environment & foe them to come and resolve the problem once and for all. I don't want to see my family ever to be faced with such a problem ever again.