The only way is to contact Angiemeez - www.meez.com - but she won't unban you unless the admin who banned you made a mistake. If they intended to ban you, even for a reason you don't think is fair, the ban will stay.
How Do You Contact Roscoe On Meez To Un Banned You For Something You Didnt Do?
This is smart thing to do to get free 1 year vip on meez.send a pm to roscoe meez saying that you mail 50 dollars to them for 1 year vip and you never got that vip.
Contact him through email, or send him a pm on meez. You can also post in suggestions that you need help with a banning and maybe aquameez, one of the admins, will appear and tell you what to do.