The Account Statement is where you can view a history of all monetary transactions made within your WorldWinner account - Signups, Winnings, Deposits, Withdrawals, Credits...It has a running balance so you can see how each transaction affected your account balance.
To view your Account Statement, tap Menu > Account Statement
On the Account Statement, you can view specific transactions by date or filter by transaction type. Additional tournament information for transactions can be viewed by tapping the "i" (info) icon (if available).