If there is a jackpot available on the game you are playing and you have triggered it, you will see a winner's notification pop-up immediately.
If you have won a Community Jackpot, you will win your standard prize (the Full House prize for example) as well as your Community share based on the number of tickets you have bought. Please be aware that the Community payout part of your prize will be added separately to the other payouts. It will not show on the total prize pot win for that game in your game history.
Example: If you win £50 for the Full House and then you were to receive £100 from the Community pot, your total win for the game would only show as £50. You would however, have both the £50 Full House and the £100 Community payout added to your account balance as expected.