€5 if the bank account number is submitted through MyRopo. €9 if the account number is notified via e-mail, contact form or ordinary post, as more manual work is required to process the matter. Ropo regularly returns overpayments to customers that have paid sums higher than the invoice sum or who have paid an invoice twice. The fastest way to get your refund processed is via MyRopo with a processing time of approximately three banking days. The letter on overpayment includes information on the service fee charged for the processing of the overpayment. The service fee covers the costs incurred from the work related to the reimbursement of the payment and will be charged if the error in the payment is due to the negligence of the payer. The payment fee is based on instructions from the Finnish Competition and Consumer Authority.