Has anyone used these guys for Porsche air suspension work?

I'm in a bit of a panic here because my Cayenne's suspension started acting up yesterday – the dashboard lit up like a Christmas tree and the ride height is stuck in what looks like the lowest setting, so I'm practically scraping over speed bumps right now. I've been calling around to different garages all morning and the quotes I'm getting are absolutely insane, with some places telling me I need a whole new compressor and others saying it's just a sensor issue. I honestly don't know who to trust at this point because everyone seems to have a different opinion and they all want to charge me a fortune just for diagnosis. A colleague at work mentioned he had a similar problem with his Q7 and ended up taking it to a specialist that actually knew what they were doing, and he pointed me towards https://suspensionrepairdubai.ae/ as somewhere that apparently deals with this stuff day in and day out. I had a quick look at their site and they seem to focus specifically on air suspension systems rather than being a general garage that just happens to work on European cars, which gives me a bit more confidence. Has anyone here actually used them before for Porsche specifically? I'm really nervous about handing my car over to just anyone because I've heard way too many horror stories about garages making things worse or using cheap aftermarket parts that fail within months. I just want someone who can properly diagnose the issue, tell me exactly what's wrong, and fix it without trying to upsell me on things I don't actually need. Any feedback from fellow Cayenne or Touareg owners would be massively appreciated right now because I'm honestly stressed out about this whole situation.