Free bets, promos, deposit bonus was already mentioned in the other thread I think. I will give you an example, how you could cheat the Multimaster Promo with heavy multi-accounting:

[img height=350 ]https://i.imgur.com/Epl0tNK.jpg[/img]
Source: https://sportsbet.io/promotions/weekend-multi-master

You have 15³ = 3375 different combinations, minimum stake 0.1 mBTC, so total stake 337.5 mBTC. But you will win 3000 mBTC every weekend (if no one else does the same)

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Take 100% first deposit bonus. You deposit 100,- and get 100,- on top. You do this with multiple accounts and always place opposite bets on these accounts. The one account plays "over", the other "under". One account will be empty, but the other has double the amount. Onto the next account. Rinse and repeat, until rollover requirement is done and you can withdraw more than you deposited into all these accounts.

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