Runescape asked me to become a moderator and i filled out the forum?Please help!!!!?

And when i filled out the forum i tried to log in but it would not let me.It says incorrect pword or user name.I tried to log in many times with the same info [user name pword] i used before i was asked to be a mod. to log in.Please let me know if they make you change your user name or pword when you log in. Or just any mod info. Please Answer as soon as possible!!!!! ASAP please!! July 10,2010