In simple explanation, the "20" here and the other number under the paytable information is the multiplier of the winning line.
Winning line will be = the number of multiplier multiplied by the base bet amount per line.
Basically it is a common thing on slot game, almost all slot games uses the same payout system (multiplier of the winning line x bet amount per line).
Thanks, makes it more clear! Was confused, because you don't see your win in the 'display' of the slot but only in your bets history.
there is no great explanation behind that but yes your just unlucky judging the amount of spins you put in the game but for @babygun we dont yet if how much spins he deploy on the game ,
maybe it was only few because he didnt manage to hit the bonus or he end up on the same situation as you where he also play hundreds of spins and yet no luck just fck but take it easy guys , it was been 5 days since they released this new update and you can always try again and for sure you will soon get that bonus round you guys are assuming .
Only played around 100 rounds, so I will keep trying until I hit it lol.