I sold something last Friday. Payment received late Sunday night. I posted the item Tuesday am (second class as in the listing, not recorded as it wasn't worth a lot).
Postage was much cheaper than I had put so I refunded part of the cost (Tuesday night).
Had emails on Sat and Sun saying the item hadn't arrived yet. I told her when it was posted, second class etc. post office aren't interested until 21 days and to let me know when it arrives.
EBay emailed me this am to say she's tried to open a dispute.
Anything else I can do?