You can email Support and ask them to change it, unless you have not done so yet online and still have numbers as a gameid........
if you have numbers as a gameid, you can change it to something more to your liking online in the Oclub.........
if you have, then either email support and explain your problem/situation or call them if you are able too......it is easier to do if you give them a call.......
outside of that , cancel the account and open a new account.........
( will lose anytime you have left on your 2 week free trial though )
hope this helps.......