A certified check (also known as a cashier’s cheque, bank check, official check, teller’s check, bank draft or treasurer’s check) can be used to fund your online poker or online casino account. A certified check is simply a check that you pay cash for at a local bank. Certified checks are different than money orders. Money orders may only be purchased up to a certain amount, which is typically about $1000. Cashier’s checks do not have a limit to their value and are treated as cash by banks as they are cleared instantly upon deposit.