make SHOP in game to buy admin vip

Hey i had a problem buying a vip ,admin at gamers shop - due to strange nickname in game probbably. 
so i suggest to make ingame shop for buying vip,admin on IP address , or nickname directly ingame . if possible 
Now i have a problem because trying at shop typing LT # ZaLsIbYS and password ingame , says wrong data .. probably due to down and upper letters and symbol maybe . 
would appreciate a fix .