Mic not working pc

SO I was just in a game and our team was UNABLE to join the group chat and our mics didn’t work. Enemy team had mics that worked. We were unable to communicate and recieved a loss. I would like to recieve this loss off my record as it was my masters rank up game. I’m actually emotionally torn right now. I’ve worked so hard for this rank to have this happen to me. It’s frustrating. Is there a way this can be investigated and I can have this loss off my record? Thank you

There is no way to remove the match off your records. See Blizzard’s policy on technical issues involving Competitive matches here:

You can however work to make sure the problem doesn’t happen again. These steps will help with that: