Very recently the local lottery monopoly in my country wanted to promote their app and gave 10€ to buy lottery tickets to anyone that would use the app.
The only requirement to cash out according to the promotion would be to buy some tickets, and any potential winnings would be yours to keep.
As you know, lotteries have very low winning odds, so probably they expected no one to win anything out of the promo balances they handed out. But seems like they forgot something...
Their mistake was that aside of just allowing this promo money to be used at lotteries, they also allowed it to be used on keno.
The gambling store version of keno has a high house edge of ~30%, but still with low risk keno tickets those playing smart would have a 60% chance of getting back all the promo money as a withdrawable balance or even winning more. Upon noticing this I told my friends and family to also create accounts and many of them got more out even than the promo balance.
Most of my family have never gambled but free money is too good to skip in any case. So we're now all waiting for the next promo, if there will ever be any.
Have you had any such experience where you managed to play in a smart way to actually be able to cash out money intended for promotion?
What country are you talking about that implements a lottery app that will give 10 euros? So is my understanding correct that there are 10 euros per ticket? If yes, isn't it like the price per ticket? Then it is right that out of millions of people who bet on the lottery, only one will be chosen to win their main jackpot prize.
Then it's possible to get really lucky and just increase the jackpot so that you have money in the lottery. I have read about some people who have been betting on the lottery for several years and have never been able to win, but if it's a total, the total of what they bet is a huge amount.