CBS ADD-ON Regio Bus Usedom Reg' Key Problem

[Vaulcan 0]

I have bought and downloaded the add on for CBS, it installed ok, now it wont accept my Reg' key. i used SIM MARKET to buy it and when i enter the key. then the next screen just says:

" Name: am

key: #####-##--## (numbers here) "

its the right key but nothings happining. no support it helping me even by email and ticket. please can someone help??

thanks!