Notify your customer no later than today that you will be collecting the payment if you didn't agree other timelines explicitly. You may also do this earlier or later if you have agreed this in advance with your customer. You are responsible for sending this pre-notification, either via an invoice, email or text message. This message must be directed personally to your customer.
Last day on which your customer's bank can return a SEPA Direct Debit B2B.
Last day on which your customer can initiate a refund under the SEPA Direct Debit Core scheme.
Last day on which your customer can submit a request for a refund of an unauthorized transaction under the SEPA Direct Debit Core Scheme.
You are not allowed to use a mandate which has not been used for 36 months.