HI, DO you have Twitter community ? Your plan is good .
Sure! Join our Twitter channel & stay updated on our latest news!
https://twitter.com/truegameSRLDev, could I use my MyEtherWallet account to allow my friend to participate? I mean the same ETH address but for a different account.
No, one wallet - one account.
Is there something that might not allow me to abuse referral program? Why not to create 10 ETH wallets, first account and invite the second, third... why does one could not try using this chance to make +5-10% more?
The rules of our affiliate program prohibit such abuse.
Hm.. Quite reasonable question, because everyone can do that. Yes its not convenient, but really profitable, its worth making a little effort.
Is there exact chance / probability for jackpot by the way?
The probability depends on the game, in some games it is painted in detail. For example, see the description of scratch cards.