Yeah take your point☹
But it's a bit like motor repairs. Get your car fixed at one garage,if it breaks again you can take it back, or take it to another repairer who will quickly say "FFS who done this? Bloody monkeys!"
If I'm not able to do work myself then faulty goods keep going back till they are fixed to my satisfaction.
I'm a builder and if a customer is not happy with work I've done I will work with them until they are happy.(or I tear it all down and kick their cat on way out!) Lol.
No no only joking ??
Regards