Payment refused ! :( How ?

Hello,

I was wondering why my MasterCard Vanilla Prepaid Card payment was refused. I already bought a script (Pickpocket by Bobby) with the same card before and used it to purchase a Garry's Mod server online and it worked. But this time I tried purchasing Job RP system by Bobby and CALL 911 by Bobby too but it didn't work. Please help I really need Job RP System, it's only 6$ at the moment. Also my antivirus has a safe money feature (Kapersky), would I have to turn off something to make it work. When I bought the Pickpocket SWEP by Bobby I didn't have that anti-virus thing on.

Thank you,

1. iTechGaming.