10, 20, enter the payment date of the end of the month. (Due on bank holidays, paid only 10 days, but behind the 20 move date, at the end of the day. )
The 10th, the 20th, and then type the end of the month of the payment date. (If the payment date Bank of rest, behind payment date is only the 10th, the 20th, the end of the month and move to the previous day.)
10, 20, the day of payment at the end of the input. (the day of payment, the bank only 10% off on the back, and the day before the end of the 20 days.) At