To add a one off refund to an existing mandate please follow the instructions below:
1. Click on 'Collections'.
3. Select the Contact you wish to make the refund to.
4. Click 'Mandates'.
5. Select the Mandate you wish to make the refund to.
6. 'One-off transaction'.
7. Enter the refund details as required.
This payment then goes into a payment file whic you can send to Bacs as you would any other collection or auddis transaction.