The bonus is paid out gradually, meaning you need to wager away all the parts to get another part unlocked. They incentivize players to make these purchases by limiting the amount they can play for free and then putting additional virtual currency behind paywalls.
http://horsecity.ru/phpBB3/viewtopic.php?f=28&t=170944
http://horsecity.ru/phpBB3/viewtopic.php?f=7&t=442518
http://forum3.bandingklub.cz/viewtopic.php...8&t=1693371
http://forum.bandingklub.cz/viewtopic.php?f=16&t=1223783
https://forum.pcfoster.pl/topic/130373-casi...lot-makineleri/
http://47.88.101.141/forum.php?mod=viewthr...6525&extra=
http://023002.com/forum.php?mod=viewthread...0738&extra=
http://horsecity.ru/phpBB3/viewtopic.php?f=11&t=417358
https://sgs-game.com/forum/thread-303789.html
http://forum.spolokmedikovke.sk/viewtopic....8&t=1158714
http://www.lada-xray.net/showthread.php?p=193568#post193568
http://forum.spolokmedikovke.sk/viewtopic....18&t=884215
https://debate.socialism.nl/forum/showthread.php?tid=183416
http://forum.bandingklub.cz/viewtopic.php?f=34&t=1651413
http://aficionado.pl/showthread.php?544953...ak&p=590760
http://forum.bandingklub.cz/viewtopic.php?f=21&t=1248192
https://udm88.net/webboard/viewtopic.php?p=32384#p32384
https://debate.socialism.nl/forum/showthread.php?tid=280244
https://pornexe.com/Thread-Canl%C4%B1-Tavla...a-Oyunlar%C4%B1