You can receive your earnings in two different waysayPal or Bank transfer depending on the country where you live. You receive your earning during the first five business days of the month and when you have reached 50 Euros at least in your account.
Iban is international banking association number or something, so if you know it great, if not either find it online or ask your local branch. Infact inquire about it all at your bank, will only take a short time to sort it. Regards