Water sewage

I am very annoyed with Johannesburg water I used more than R200 airtime trying to get help since Friday all I get is empty promises, ppl in the call center sometimes they do not answer calls, I have a sewage blocked the water overflowing in the yard and I was told that the ppl who are supposed to assist will assist within 24 hours today it Sunday 6pm no one came and I have already called more than 4 times. I don't understand why we are not treated with sense of urgent instead you keep on calling ppl who doesn't care.