Well, with all respect, you got what you paid for. This is the difference in between bare bones dedicated server hosting and managed hosting of any kind.

At one of my previous workplaces, we had a park of around 3k servers, with 2k of them on Hetzner. At such scale, you can not physically escape from the fact that all kinds of weird stuff happens with hardware, like buggy raid cards, physically unrebootable servers, dead cores, faulty and fake memory, bitrot, throttling due to underpowered PSUs,etc.

My favourite find was a "xeon 2637v3" with 6 cores (2 extra cores for free! unlike the normal sku.)

And we always had argument about their service, availability, giving us three faulty raid cards in a row, sued them few times for a refund, but... the company still liked them sooo much.