I Face Email Loss on Huawei MatePad Brawl Stars Account and Cannot Transfer to New Device

I have been playing Brawl Stars on my Huawei MatePad for a long time, but my account is linked to an email address that has since been lost and deleted. Because of this, for nearly a year I have been unable to transfer my account to another device. I tried adding a new email address to solve the issue, but every attempt failed. I only partially remember the lost email—it was something like “fsener666”—but I cannot recover it.

I contacted Supercell customer support to explain the situation, but they did not resolve my problem. My in-game username is Lemax, and I have never made any in-game purchases. All I want is to transfer my account to a new email address so I can access it on another device without restrictions.

I request that Supercell link my account to a new valid email and restore my ability to play on multiple devices immediately.