Very poor quality of work

We had a claim through Hollard (just as bad service). Wessac replaced our geyser on Thursday 5 Feb at 17:00 pm. On Friday morning we had to call them back. Geyser not heating water. They came and fix their mistake of wrong connection. Today, Sunday the 8th water came pouring through the ceiling. Electricity tripped. Once again we are sitting with no wwater and electricity and is now still waiting for a call from them.