Bit of advice if you will. Sold a phone on ebay, no longer in contract and turns out phone company didn't process unlock so agreed with buyer I'd request again. Major delays with phone company and a big apology as they didn't contact me, so now buyer wants refund even though I've now offered unlock instructions and it's been processed. she has opened an eBay resolution case requesting refund.
I can cope with this, but what is the best way to avoid paying (or rather get back) the eBay and paypal fees for this non-transaction which weren't exactly small.