Just wanted to double check here as I recently spoke with Duelbits support but wasn't able to get this sorted out.
I just did a search to see what their terms say, but I couldn't get a clear answer.
Their FAQ says that you can't change your email address, but you can close your account and then create a new one.
The email address that your account has been registered to cannot be changed/switched to a different address.
This policy ensures account security and prevents unauthorised changes. If you entered an incorrect email address during registration, you must close the account associated with that email and create a new one with the correct email address.
Their Support Guide says that you can contact their live support to close your account.
If you need to manage your gambling activity, Duelbits provides several tools accessible via Live Support:
Self-exclusion: Close your account for a defined period, 1 week, 1 month, 6 months, or permanently. Contact Live Support and your account will be restricted immediately.
But
their Self-Exclusion Policy says that you can't create a new account if you have closed one.
You should not attempt or proceed to open any new accounts during your self-exclusion period, or indefinitely if a permanent self-exclusion has been selected.