Someone bought a top from me and the suggested postage was for a small parcel (£2.90). However, I've been to the post office and it was OK as a large letter, so only cost £1.22.
I want to refund the difference (happy to only be reimbursed for the actual postage).
How do I do a refund of part of the postage? I've just spent half an hour on the ebay and PayPal sites and can't work it out.
Thanks in advance!