I understand your frustration and also I am having trouble with Samsung. I bought a Note 9 which didn't work 100% (Bixby didn't like my voice) and I bought it because of the Bixby feature, I have severe arthritis and my right hand is pretty much useless now, the voice control sounded a way to help me but Bixby was more useless than my hand. I was told I'd need to wait for a software update (unknown date for such) so I returned the handset.
They returned some of the money but still owe me a considerable amount. Been going on 2 months.
I'm on long term sickness leave with half salary and the money is important, dealing with their customer services has really caused me suffering, they truly are the 3 i's:
Incompetent
Inconsiderate
Irritating

Their products are market leading technological marvels but I'm afraid they've given me the worse customer service experience and I've totally lost confidence with them, so you are not alone, I'm sure Samsung has treated many its customers poorly also.