Is it even possible to change my name but still keep the same account with the same cards and everything? That's probably a question for Zanz.
Imagine you were Zanz and you received 20+ emails a day from people asking that
two letters from their game account would change places. Now imagine doing those changes to Elements database
every day.
Those kinds of useless emails should be avoided at all cost.
"Zanz, what is my password?"
"Zanz, can I change my password?"
"Zanz, what is my username?"
"Zanz, can I change my username?"
"Zanz, how can I upgrade a card?"
etc.
Emails like that are the reason why some important email might not get answered to. Nobody has time to answer to all those dumb questions and requests. I know this from a personal experience because I get a lot of PM's from people asking deckbuilding tips or some totally random stuff. I would image Zanz gets 10 times more mail than I do, so I don't blame him for answering every single one of them. I know I wouldn't.
You now have a chance to do the right thing and
not bother the developer with the ridiculously insignificant thing.