Afrox not supplying feedback

On 26/07/2021 I contacted the Afrox Customer Service Centre regarding a problem I had with a gas geyser which they installed not even 2 years ago. The gas geyser was poorly installed and is now rusting away due to not having been properly installed. They acknowledged receipt of my query and even supp**** me with a reference number for my query. I have not heard anything from Afrox since, despite sending them numerous e-mails since then (quoting my reference number). I find this kind of service unacceptable and not in line with my expectations.