The first day of each calendar month, you will receive a statement for Flex with a summary of the previous month's used credit. The interest is withdrawn from your balance automatically. You easily repay the used credit by adding money to your P.F.C. card.
You can choose to repay the full amount announced on the statement, but the minimum amount to repay within 14 days is 6% of the used credit or SEK 50 depending on which amount is higher.