I just signed a message with this address bc1q3l4xdsquj4vnmlemg85pw7ymujc3yl4f5v7vth on my profile. Hopefully, all goes well.
I think that should be good enough
However, they might still think the address was recently added to your profile thus there might still be some doubt. So ensure you inform them that the address has been on your account profile for a while (since February last year) according to the archive -
http://web.archive.org/web/20240229082930/https://bitcointalk.org/index.php?action=profile;u=1073153