Disgusted with service if City Heat Geyser and Basil Moses of Wakefields

My geyser burst around May 2019. The Body Corporate of the gables and the managing agents Wakefields processed my claim. I was told a new geyser was installed and I paid R 1500 excess. Ever since I had problems like the geyser was leaking, overflowing , tripping the main etc. Eventually in December 2019 I found out that the geyser was not new, meaning City Heat Geyser either repaired my geyser or installed a used one hence the ongoing problems. Eventually the geyser burst on Friday 3 January 2020. Duran the owner promised to replace the geyser. Now he doesn't take anyone's calls. The fact that he claimed from the insurance company for a new geyser but installed an old one, this is *****. The managing agents supports this by not pursuing the claim. I cannot believe Wakefield's staff Basil Moses advised me that I must repair the geyser at my own cost or seek my attorney's assistance or go to the ombudsman . Another plumbing company gave a report that the geyser was fitted with the wrong size valve . Whose problem is this? Wakefield and the gables body corporate and city heat needs to explain the above. Thank yoy