Brawl Stars Bug Gave Me Extra XP and Mystery Brawlers—Need Help Fixing This

I encountered a strange bug in Brawl Stars that affected my secondary account. The Ender character J*** appears as a "Mystery" brawler** instead of its correct rarity. While completing a task, the bug also gave me 7000 XP, which significantly boosted my progress. Because of this issue, my new account unlocked three mystery brawlers in a row, which doesn’t seem normal. I need urgent support to resolve this, as my account progression feels unbalanced due to this glitch. I don’t want to be penalized later for something that wasn’t my fault. Please investigate and provide a fix! Supercell, I need a real solution, not an automated response!