On the flip side, when you have an electrical/electronic background and you have a warranty issue with something, trying to get them to believe you know what you’re talking about is so frustrating.
Just had a issue with an LED headlight that failed on my car, knew exactly what the problem was and just wanted them to replace the faulty part. Took about 40 emails of them asking the same question 30 different ways. Eventually sent the idiots a video. After all that, they sent the complete system, so now I have spares!