Not sure what this is - scam or not?

[LittleHare]

Yesterday, someone paid a small amount into my paypal account. No message relating to it, and I haven't sold anything for that amount.

I sent them a message asking for reasons for the payment. They came back this morning with "she paid something for me at £20".

I've now asked who paid something for them and what was it?

Any ideas if this is some sort of scam or not, as its the first time I've had anything like this happen?

Yeah that's weird. Is your PayPal name one that could be easily confused with someone else's?

No my actual name is quite unusual, and I use my business email address for paypal payments. As I said in my op, I haven't sold anything either.

I would contact PayPal about that and explain, say you are concerned it may be a scam.
Its not possible for you to tell if its a scam or not yet, so don't do anything and let them deal with it.