Trustly connects you with your online bank and processes the transactions as per your choices by charging the funds from the bank account you've selected, and then sending the money to the service provider. In this case, that would be the online casino.
Using Trustly at an online casino is easy:
Select Trustly as your payment method
Select your bank and sign in using your bank logins
Select the account you wish to use
Accept the payment
The deposit should be visible on your player account immediately, or within minutes.