https://www.slotmonster.com/en and https://gxmble.com/ are sites where I have had transactions through them.
Slotmonster - Coinshop.work (crypto) at first there was only a deposit on the transactions, then they were changed to Coinshop.work
Gxmble - Goriwire (quickbit)
Otherwise, you can try making deposits on the sites you think you played on, just deny settings via Revolut until their names appear on the screen, which may take a while.
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