Allocating a Credit to an already reconciled customer refund (Sage 50c Essentials)

SOLVED

Hi

I have refunded a customer via a bank payment and logged within Sage (not via the customer refund process, just via a 'bank payment') and reconciled . However, I have now created a credit note which I wish to enter into the system and allocate against the payment.

Is there a way of doing this? I have only ever allocated a payment made against a credit note already in the system, not the other way round.

Thank you

Becci