Shockingly bad service from Standard Bank Insurance

I reported a leak from my geyser on Monday. Three people have been out to see it. The valve was replaced on Wednesday. It is STILL leaking. There has been water pouring down my wall for five days. This geyser was replaced under insurance two months ago.

I reported it and asked for a call back on the website yesterday but was never called back. I cannot get hold of Standard Bank Insurance on the phone because of "high call volumes".

If this is not fixed to my satisfaction TODAY I will end my contract with Standard Bank Insurance at the end of this month. This is shockingly bad service.