Although it can seem stressful at the time, there's really nothing to worry about in this scenario.
If your connection is lost while you're in the middle of an active game, the outcome is maintained – which means any wins from that play will already be safely added to your account balance.
Not only that, but as soon as your internet is back up and running, you'll be able to restore your game to the exact moment when your connection went down.
To help minimize a future issue like this, we recommend Clearing your Cache and Cookies. Should you still experience disconnections, please contact us and we'll be happy to assist with additional troubleshooting.