have u tried another nickname and email addy that matches it???
like try changing ur nik to say Stylze with an email addy of stylze@email.com

try that and then type /debug @debug ..... that turns on the debug window ... and then please post me anything pertaining to why u couldnt connect if infact u cant ...... im thinking possible yes parabrat is correct they dont like ur nickname and username ..... so try something different ..... it isnt the end of the world if u cant use that one particualr nick

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