No after sales service when geyser is under warranty.

I had a new Kwikot geyser installed 15 months ago. It packed up yesterday morning. I contacted the installer who passed on the complaint to Kwikot as it was still under guarantee. I was told that a team would be here within 24 hours to install another geyser and that my Warranty/Insurance Claim had been registered. My reference is ***. It is now 30 hours later and not a peep. Of course, when you look at the reviews you can see how absolutely useless their after sales service is. I would hang my head in shame if I was on the board of this company.