Repaired for 5 times ?? Wow.. I personally wouldn't have agreed to this. As a personal experience, my 2 month old Note 10+ 5G had to have a new mainboard and I was furious. The Samsung repair centre said that if the same problem occurs for more than 3 times, then I get the phone replaced altogether.
I would definitely speak to a superior and ask for a new device!
Current phone : Samsung Galaxy Note 10+ 5G 512GB