when player buys premium accounts, TIME STACKS
exemple:
player buys premium account 2x drop for 1 hour --> player has 2x drop for 1 hour
player buys after premium account 5x drop for 1 hour--> player has 5x drop for 2 HOUR!!!!
time STACKS for premium account, and bonus stays for last premium type added, this is big exploit, plz fix.
