BAD Galaxy A21s

I've always been with Samsung Android phones. I bought my wife once, a couple of years ago a LG Android and regreted it untill she broke it. A month ago I bought my wife and myself a Galaxy A21s. First I did a bit of research on the phone, not to intense, because we are talking about Samsung, and I've owned Samsung phones for the past 16 years, and have never had problems with it. First I found that by adding a SD card, it only allowed data, like pics, music, videos, etc. to be stired, but not apps to be installed or moved to the SD card. That was a bit of a bummer, BUT I had no choice to work around it. It was either my Whatsapp, of 14GB and 2 games or nothing (only realised that after buying us both 128GB SD cards). That was still semi OK, but than we experienced the worse Touch Screen ever. I'm in the POS industry and I've had that some bad Touch Screens in the past, BUT THIS phone takes the cake. The Touch Screen on this phone is BAD!!! I phoned Incredible Connection, where we bought the phones, with Screen protectors, AND they said that the problem was the Screen protectors???? Firstly why sell the Screen protector to me and secondly why not tell us about the bad Touch Screen? I can't blame Incredible Connection alone, Samsung should have either pulled the phone off the market, or at least sold it at a cheaper price! It cost us R7900.00 for both phones, with Screen protectors. I am dissapointed in Samsung for this bad quality of phone and have read numerous of complaints, about this phone, only after we bought it. I would like Samsung to give us a solution to the problem, or at least pull this model off the market so that no one else buy it and sit with the same problem.