Cheques may accompany only those European patent applications which are filed with the EPO. The national authorities competent to receive European patent applications do not accept cash or cheques but do accept debit orders for deposit accounts. To avoid the risk of payment being debited twice where a debit order is sent by fax, the original should not be filed subsequently (see points 6.2, 6.9 and 6.10 of the Arrangements for deposit accounts, Supplement to OJ 10/2007).