No response from emails regarding house insurance claim for our Geyser

Mid June i called Miway and i explained to them that i have two normal geysers that are not working and one small one that i would like replacement for, we switched it off as it is making a loud noise and I'm afraid it will damage the clothes, now even with cold water when you open a tap there's a loud noise.

Again may the insurance come and fix these geysers before things are damaged, i was told to find my own plumber of which I did and apparently he was expensive and Miway promised to send theirs but to my dismay nothing and no one has come two months later . We have not been able to bath properly coz of their inconvenience