Vodacom chatz Kuruman dismal failure to do repairs

morning, I have a Samsung Note 10Lite this phone started giving me problems from 6 months of ownership and has been sent to the Vodacom repair center 3 times and they can not fix it. the issue is this, the phone freezes, blacks out, restarts after every call, fingerprint sensor not working, and shuts down for almost 4 to 5hours at a time.

the last time the phone was sent to the Kimberly repair center they kept it for almost a month and I received the phone last week a day before Easter weekend, and the problem is still there. as I write this message the phone died last night and has not switched on again it just vibrates.