Some Sundays when I'm at home I put a few 50p bets on, just for shits and giggles, including a monster accumulater, where I pick what looks like a 'guaranteed' win from a number of the European leagues. Yesterday was 20 teams and unusually it fared better than normal. My 50p stake, should all teams be victorious would have returned £80. By about game 15 I was offered a cash out of £50 briefly but thought I'd let it ride, it was a total punt after all.
The 19th side won and the 20th side, Maccabi Tel Aviv (1/5 to win) were 1-0 up at half time. I decided that I wasn't going to take the risk and would cash out, I figured I'd get around £65-70 or so. But wouldn't you know, Bet365 decided not to bother offering any cash out for whatever reason. Tel Aviv's opponents equalised on 65 minutes and the game finished a draw. Pfffft
Bet 365 are arseholes like that occasionally