Free bets can look straightforward until you check what happens to the stake....

https://enyenimp3indir.net/why-do-some-free-bets-force-me-into-odds-i-wouldnt-normally-take/

Free bets can look straightforward until you check what happens to the stake. This guide for Irish customers explains the key terms, how to compare offers and why a €10 free bet at 4/1 returns €40 in winnings when the stake isn’t returned