Sage Business Cloud Accounting : Refunds in more than one part for partially paid sales invoices

SUGGESTED

I have some refunds to enter in two parts ie the refunds will take place at 2 different dates.

The initial invoice was either paid in full or partially paid by the customers.

This is what I have done so far:

1. Invoice raised for £500 for Accommodation : Ok

2. Customer receipt of £300 allocated to the invoice : Ok

3. Accommodation cancelled so Credit Note created for £500 and allocated to the invoice : Ok

Now I need to refund the customer £300 in two separate transactions one now and one later (we don't have the cash to do it all now).

I have tried a number of ways to get this done but I keep getting stuck since I can only enter a refund for the full £300.

Any help would be greatly appreciated.