So it does,
..but where does it say that you must play 20 games.
This one is 101% bullshit:-
What a load of bollocks!
When you withdraw, the bonus is removed, it takes no further part in play. Whether you reverse your resulting cashout of $xxx or let it run it's course and redeposit $xxx makes ZERO difference to the risk to the casino of playing on that $xxx. Even if a promotion is claimed on reversal, it STILL makes no difference whatsoever whether the claim was made from a reversed $xxx, or a redeposit of the same $xxx after payment.
If is does make a difference, it is slight, and in the casino's favour. They save on paying the transaction charges both ways on $xxx.
A decent advantage player would not trip up on this, they would know it makes no difference to the overall EV, so they would play the casino's game and do it by the book so that they have one less excuse to void the win.
The sneaky part is that Rival actively promote reversals to players, so a player might take up such an offer that shows up, and forget that they are walking into a potential pitfall because they are exposing themselves to this term.
Since "the terms below" ONLY apply to players flagged as frauds or "bonus abusers", players not flagged as such are excused all of this, and can freely play all WR on a single game, and reverse away to claim promotions as much as they like. Until a player has played a while, they cannot know whether a player has been flagged, so those new to Rival can hit them hard, something they couldn't do if the terms applied to all players, flagged or not.
The "must play 20 games" term isn't even there, so in this respect, they are acting like full blown rogues for giving this as a reason to void winnings.
It seems the OP "played on" after meeting WR, so maybe they can't back up a claim that at least 5 games were played for a minimum of 20% of WR each.
They also seem to be telling the player they were flagged after the fact, as they clearly were NOT flagged when they took this promo, as under the Rival system, flagged players don't see any promos in their lobby. Retrospective application of terms is another rogue practice, but this IS a Rival casino after all, so hardly a surprise