I’ve been doing this for a while but am wondering if it’s worth it.
As a buyer I avoid sellers who set crazily high postage and find it annoying when sellers quote a price then send for a much cheaper rate.
So as a seller I like to refund difference if I have managed to send something quite a bit cheaper. For instance a large letter instead of a small parcel. I refund via PayPal then message the buyer. Occasionally buyers send a nice reply but more often I don’t get any reply and it doesn’t seem to have any impact on feedback.
Should I stop bothering? Does anyone else do this?