Haven't hear anything since, but problem is solved
Suddenly is was thinking: what if I have closed the game too soon while it was calculating the win......?? So I opened the game again, and indeed: I had an unfinished game

How stupid could I've been! After letting it finished, my balance had been credited with a nice 251,40.
Thnx captain Rizk for replying from your holiday and sorry for the inconvenience. Thumbs up!
Person from live support many big thumbs down for that stupid reply. At least he could have asked me "didn't I close the game too soon......." instead of such a bullshit reply that these sort of things are common with slots......
@ Captain Rizk: enjoy the rest of your holiday and please take a close look to your support agents!