Why cant i refund the refund the customer?

Good evening dear community,

I would like to refund my customer's money, but this is not possible.
What can I do so that I can refund the customer the full amount + the shipping costs?

Thank you for your help!

![Bildschirmfoto 2023-09-30 um 21.07.55.png|1484x1278](upload://9BFZMTAANjSWIbb2FSwLJFMsTvQ.png)

Hey @HarunP

Das besprechen wir gerade hier.