In order to purchase Prize Bonds by Direct Debit you must be an existing State Savings Customer with a State Savings Customer Number. Please see ‘How can I buy State Savings products (including Prize Bonds)?’ Existing State Savings Customers can purchase Prize Bonds each month by completing the SEPA Direct Debit Mandate form available here. We accept Direct Debit instructions from a personal bank account located within the Single Euro Payments Area (SEPA). A copy of a bank statement verifying the account on which the Direct Debit is to be drawn must be enclosed. Original or certified copies of proof documentation for the account holder(s) and the Prize Bond recipient(s) are also required. The completed mandate and supporting documentation should be sent to: The Prize Bond Company, Floor 3B, GPO, FREEPOST, O'Connell St. Lower, Dublin 1, D01 F592. Please note that the maximum direct debit amount per month is €1,000.00 Any subsequent changes to a mandate should be made in writing to the address above.