Heya,
I would like to rename this account from dogedice.me, to BitDice as we closed our first project named the same like two years ago.
IIRC you need to be a VIP to change username.
Or a service that rebranded, in that case theymos has been granting wishes for new names in the past aswell, even without the VIP status.
Speaking of the devil, OP of the linked topic should be your first contact,
write theymos a PM about it.
That being said, I made a similar request recently which didn't get answered (might have just been lost in a pile of crap, maybe I should write him another PM soon).