Single Status Update
Tech-related companies with which I've had poor experiences with their customer service/tech support departments:
Kia (a specific dealership, after which I spoke to corporate who came down like the hand of God on them)
CyberPower (the power systems manufacturer, not the boutique computer builder)
HP (now HPE, specifically in regards to their Procurve PoE switches)
Anyone making a tech product via Kickstarter, consistently, every time.
90% of people I've purchased tech from via Ebay...though Ebay itself is great.
Tech-related companies with which I've had a good experience with their customer service/tech support departments:
Dell's probably changed since I last spoke to them since it was quite long ago. Hopefully your experience is the new norm.
I'd be remiss if I didn't disclose that I used to work for them in a support role 15 years ago. Even then, the support experience usually depended on which division you reached and what tier of support you reached.
This is true.
I have the feeling that Facebook messenger and mail are managed by different people. Could also be that it goes to different people as I just use this Facebook if something went wrong in the e-mail or contact form communication.
This makes also Asus extremely bad as this there where like 5 years in between and different departments (display and audio (this should have been passed through to the engineering department if handled appropriate/responsible)).
What is in my eyes a major disappointment when they make a mistake and just refund the position in question instead of fixing it/providing a solution followed by a friendly notice that I dislike it (never yell at support personal regardless of how bad the experience is). When they still keep it as "solution" the answer will depend on how annoyed I am a GDPR request followed by account deletion or just account closure.