Absolutely annoyed and frustrated

I have been having issues with my phone Samsung A72 since August , I have been to the service centre FOUR times. The issue is the phone is too cold to charge, this is the same fault that keeps on repeating itself. The four repairs are as follows : 1- did a software update after 2 days same issue 2- fluff was is the charging port 1 day same issue 3- changed the charging port 3 days same issue 4- changed the main board and battery 2 days same issue. The annoying part is that i have to take time off work to try and sort this problem yet not solved further more i have to drive a distance to the service centre. I don't get a standby phone to use while the repairs are being done. Lastly I called the service centre for the way forward cause now I need a new phone, they say I must bring it in again to do a test so they can log a report for a new phone , if they can't find a fault they i don't know what happens, I ask to speak to their manager didn't wanna put me through. Secondly before I could give my phone in for the second time customer service agent called to rate the service i explained the issues , she was gonna escalate it uptil today not a call its like over a month now. Got another 3 calls from different customer service agents pushing for reviews but the phone is not fixed how freaking annoying. Lastly ,Wednesday called in the call centre to escalate it spoke to Mandisa, said I will get a call still nothing that's damn poor service. This phone is on contract, purchased from telkom last year October, if this phone wasn't under warranty it would have been destroyed against a wall. The reason I traveled to the service centre is cause I use my phone daily for work so I need it fix boy now I wanted it replaced asap