Hey! I have contacted blizzard yesterday about this, but they forwarded me to contact the bugs team.
They said this:
*Group Up with Higher-Ranked Friends: Queue up with friends who are in Silver or Gold. Winning matches in higher-average MMR lobbies will signal the system that you belong there, boosting your percentage gains.
If you try these steps and your rank remains completely frozen at 10% per win despite dominant performance stats, it is highly likely a backend database glitch affecting your account’s progression curve.
Since Customer Support cannot manually adjust competitive tiers, your best course of action is to head over to the official Overwatch Bug Report Forum.*
Thing is, I play with my boyfriend 24/7. He was also in bronze but as we played, he kept gaining 30%+ while I got only up to 12% progress. He’s already gold 4 while im hard stuck bronze, Which also means that I play in gold lobbies sometimes. I know im not in the right rank because I also reached pro on stadium competitive .
Im sorry for the ego but I’m destroying the bronze people.. I even get accused of being a Smurf and sometimes getting reported. Please help me out, bc for weeks I have been playing daily comp only and I actually feel bad for making people lose progress because of me.
Thank you!