I am running a small local event with a friend and she accidentally sent a cheque to refund somebody thinking that they had paid us when they actually hadn't.
On realising her mistake, we emailed the other party to say what we had done and we hoped that her honesty would prevent her from cashing the cheque and could she please return or destroy it.
We have now discovered today that she has in fact cashed it, while being fully aware of the mistake and that it was not her money.
Do we have any legal rights regarding getting the money back, or is what she's done just immoral? It's only £20 but I think it's dishonest of her!