well i farmed on f2p 2100 crystals then when game time ended and new patch came i tried bought that 3month gaming time. At first it didn't work reported that "insufficient Crystal at your account, please top-up account". Then i logged on F2P to check did i lost those crystals or not. Opened cash shop on game, first it shows 0 to me then i closed it and re-open and there was now that 2100 crystals. Then i open web browser, game still online, went subscription page and bought that 3month gaming time got 1 extra month. if bought those crystal real cash you can get that 180 days, atleast said that red message on it. Now i logout on f2p and tried to switch to p2p it said "no gaming time" relaunched game and tadaa..there is 4month to play.