WotLK acc problem ...

Hi guys .. after one year that i havn't entered on my acc, i cant found the password… i dont know how, i have writed soo many times pass that i known, it was not the first time i dont played for year so its impossible that i have forgot the pass .. the problem is … the e-mail was too old since old Molten servers .. i cant remember the e-mail and the password … so its impossible to recuperate my account password … do you guys can hellp me with this what to do ? i know my user name but password is not the one i remembered ….