Help! Shady buyer

[meganvas]

I sold an iPhone on eBay over a month ago. I have just been on holiday & while I'm away the buyer launched a case suggesting he'd never received the phone & because I didn't respond in 6 days (I was without Internet!!!) they took my money & paid him without me having a chance to investigate! This is the first I had heard about this case - the buyer is hugely shady. He says he lives in the uk (I only wanted to ship domestically) but then asks me to ship to the Ukraine!! I did so and have not heard anything since. He did not contact me to ask for a tracking number or anything! Then this - a month later when he knows I'll no longer have the postage details which I realise is silly but I've never had an issue this late in the day. I am a 100% 10 year ebayer and I am disgusted that eBay nor he have consulted me during this process! I wish to contest this and ask that you launch an appeal. While I no longer have proof of postage, I should have received the phone at the return address & until I do & because of his hugely strange behaviour in this matter, I will not accept this resolution. However, trying to do so, I'm sent through 3 different departments (having to explain each time to someone with limited English) and told to call back when eBay.com customer services open! I have to catch a flight and have spent a lot of money on the phone call from Italy by this point! I don't have £94 for them to just take but do I have a case??? Is there an email address I can use to contact them instead now I have a bit of 3G?! (Seems I'm asking too much)
I want to leave eBay after this. It's gross!!!
Thanks for any advice you can offer