ABSA insurance

I currently have a mortgage with ABSA, that includes home owners insurance which covers damages like a burst geyser. My geyser burst on the 3rd of May, they sent TJS Maintenance but they only replace the thermostat which is still dysfunctional. I've called a numerous number of times but they send me empty promises about who they've sent to fix my geyser and i'm still waiting.

The reference number they sent me is: **********

I don't know why they sent it because they not doing anything about it .