DISAPPOINTED IN MTN TECHNICIANS

I am very disappointed in SAMSUNG S22 ULTRA. Got mine near the end of July 2022, and about 6 weeks ago my selfie camera got disfunctional. I wanted to take a selfie and out of the blue It keeps saying camera failed. I was disappointed because it is TOP OF THE RANGE PHONE up to date.I took it to Verona at local MTN STORE, where i got my contract, they sent it to MTN TECHNICIANS, it came back last week, they said they couldn't find anything wrong with camera. Verona took a look at it and saw the camera was STILL DISFUNCTIONAL, before she let me know my phone was here, she did a check-up!!! So she's going to send it back again. ITS VERY VERY DISAPPOINTING, because I am paying a contract for a phone I dont have. It is still under guarantee, so why cant i get a new phone? How will the MTN TECHNICIANS be able to get the fault on my SAMSUNG S22 ULTRA the SECOND TIME around, if they couldn't find it the first time??? VERY DISAPPOINTED IN MTN TECHNICIAN. I was so excited to get this TOP OF THE RANGE PHONE AND NOW IT HAS DISAPPOINTED ME.....here at MTN and even Vodacom they told me I'm the first person with a comeback on this TOP OF THE RANGE Samsung s22 ultra phone. MTN TECHNICIANS, HOW CAN YOU CALL YOURSELF TECHNICIANS??? When you are suppose to look at a cellphone 's camera, and you sent it back still faulty????!!! PATHETIC SERVICE, VERY DISAPPOINTED