I am glad you are going to contact ebay now with the details.

When & if you also message the buyer (and I would), just make sure to phrase it as she must have made a mistake with another purchase, that way she has a face saving way to get out of her claims.

I don't know that your feedback score would necessarily stop buyers from buying or attract scammers. What may give some buyers pause is the recent  neg feedback as they have the ring of truth about them. You do have the option to reply to feedback & maybe you should, just with a quick note to say you are sorry for the poor service, you were off ebay for a couple of weeks after a death in the family & they have now been refunded.

I think what may attract scammers more is the fact you only have 64 feedback in total, good or bad, so maybe they think you are a bit inexperienced or might easily be bullied into making a partial refund just on their say so, without any evidence given.

If that is the case, they may not be willing to make it official with an ebay claim. I hope if some scammers made ebay or paypal claims for everything they bought, that the system would eventually flag them in some way and restrict them. But by just hassling a seller and getting a private partial refund, they would be flying under the radar.

Have you actually attracted many scammers though, except for this latest case? The other buyers who gave negs don't seem to be scammers, just disappointed customers.