My deposit account did not contain sufficient funds to execute a debit order in full. In order to avoid a loss of rights I immediately paid the fees via credit card. What happens to my pending debit order to book the fees from my deposit account?

If you have effected the payment via another payment method accepted by the EPO, you do not need to worry about a pending debit order that could not be executed due to insufficient funds. In the case of a debit order still pending more than two months after the date of receipt or after the date indicated as the deferred payment date, the EPO will remove it from the list of pending debit orders in Central Fee Payment, provided that

the fee specified in the debit order was paid by another means of payment; or

the patent application concerned is considered definitively closed.