What happened to the name that was "Van Biljoens"

I don't know what happened to this business and why it's gone downhill. This used to be the flagship go-to business for appliance repairs in Pretoria. I have supported them since early 2000's. This is the first time I have had such a terrible experience. I handed a portable Delonghi Air Conditioner in for quote in Oct 2023. After many calls to the shop I was promised that they would get back to me but no one does. As of June 2024 it been months and I no longer have proof of the item I handed in.