Some hours ago, i was on WoS and i hear that i must buy levels now for Score............... Can Some1 tell me why??

It is also for players to get more interactive to use /jobs and money to have more value to the players

how do u buy levelups?

you can only level up if you have enough money and hours each level cos 6000 more than the previous level
(example) level one :6000
                level two:12000 and so on and so fourth