microphone does not work on iphone 12 pro

I have spent about 2.5hrs on the phone with apple today about this issue. In the past few days I have turned my phone off and on, tried FT with and without WIFI, removed my phone case to see if it was interfering with the mic, nothing has helped. I decided to try FT on my Ipad to see if how that went and it worked just fine. When I talked to apple today they had me restore my phone. The first time the restore froze and never actually restored it, I did it a second time then it finally restored setting. After the fresh restore I made a FT call and it was still choppy on the other persons end, I have no problems hearing them. Called apple again, I was going to restore a second time but I told this guy(as well as everyone else) about this thread and here is the convo.

Apple Tech: "No I'm not going to have you restore it again, if everyone is having this issue than I'm sure another restore isn't going to fix it. It will probably be fixed in the next IOS update."

Me: "I have told all the other apple techs about this thread and they said they haven't heard about any issues with this so how do you know this will be fixed in the next up date?"

He didn't really answer this question

Apple Tech: "They are wrapping up the newest update right now so if you can hang on for a little bit I'm sure it will be fixed."

Me: "How long is a little bit?"

Apple Tech: "A couple months."

.......................SO I'M SUPPOSED TO PAY $50ISH DOLLARS A MONTH FOR A PHONE THAT IS OVER A $1,000 FOR IT TO NOT WORK FOR A " COUPLE MONTHS"????

He then had me try one more thing, turn FT off restart my phone and then turn FT on again, I made a FT call and for about 10 min there was no choppyness butttt then it returned. I'm so frustrated I don't know what to do besides return it?!!