Please enter the following information. You will be sent an invoice for 20 bag empties (£36.00) plus the number of SDL garden bags you need (£6.25 each). Authorised funds will be taken by direct debit within 3 days. When your account reaches 6 bag empties or less a direct debit invoice will be sent to top up your account by a further 20 bag empties. You can cancel at any time and any unused bag empties will be credited to you.