Geyser issues

Last Tuesday I had to replace a geyser in my home- which apparently had burst. On Thursday, after the replacement geyser had been installed, water started pouring out my outlet pipe, we contacted the plumbers, who contacted the manufacturers of the geyser, who then sent out new plumbers, who supposedly replaced the thermostat- and yet again, the same thing happened on Saturday- we were then given the number ourselves by the original plumbers, for the manufacturers- who then sent out new plumbers, who explained that the element needs to be replaced. I then phoned Standard Bank this morning regarding the above- the number of calls I have made, the fact that every time, new plumbers are sent out to us, and the fact that this is supposed to be a new geyser- and that I thought it would be better to get a new geyser, one without the above issues, to be installed, only to be told- that the manufacturers of the geysers, manufacture 1000's of geysres, and it is unfortunate that I have had one installed with all these issues!!!!! Honestly- is that the best you can do- and that if I needed to have a new one installed, that would be another excess- in my humble opinion, this is unacceptable customer service. I also went on to ask that if this substandard geyser causes damage to my roof- would this be covered- and I was told that this would need to be reviewed by management- so say the least, I am highly annoyed!