Brawl Stars Account Stolen and Transferred to Another Email

I have been completely locked out of my Brawl Stars account for approximately 12 days. The account, which I used on an Android device linked to both Google Play and a Supercell ID, has had its registered email address changed without my knowledge. I do know what email address the account was transferred to, but since verification codes are no longer being sent to my own email, I cannot log in.
When I try to reach the Supercell team through the in-game support section, I run into the same verification code step and cannot get through to anyone. As a result, I am stuck on two fronts — I can neither access my account nor get direct help regarding this security breach.
I have purchase receipts tied to this account and believe they are sufficient to verify that the account belongs to me. I am asking the Supercell team to review my purchase receipts and any other required information, verify my identity, and re-link my Brawl Stars account to my original email address.


