burst gyser

Kindly take note that I claimed for a gyser which has burst only to be told that they cannot pay for it because it's not an appliance. I then made my own research only to find that it is an appliance. Recently I had to buy a new gyser seeing that I need it, had to spend for a paint as the leakage also spoiled the wall of which the ceiling needs to be fixed. I will appreciate if that can be fixed in an amicable way by the insurance.