You can check your transaction history by clicking your profile in the top right corner, then selecting "Transaction History." If you need something that is too old and is not reflecting here, please reach out to customer support.
From here, you can edit your search criteria and find your transactions.
To see your current bets, go to the bottom of the page and select "My Bets."
You will then see a screen showing all of your current open bets and any cash out options you have.