Standard Bank Home Insureance & FOGI

My gyser busted over two weeks ago.. Plumbers were sent ti replace it and replaced it with a gyser that does not work.I reported once again that the gyser they sent is not working, a plumber came and assessed it, said it was under warranty so the manufacturer needs to fix it.. It has been two weeks withput knowing what is happening with Standard Bank and Fogi, I call almost every single day but no one seems to care to even do a follow up with FOGI.. Boiling water for a family of four using a 1.7"L kettle is not fun. Every time I call, I have to start the story all over again cos it seems as if no one knows the progress. This service has left me appalled.. I am over Standard Bank and their service providers.