there is automated live chat where they respond to your question type and also live chat with an actual person, calling is an option but you get offshore, I have used both of the later options as I had 2 tw$ts just before xmas that gave negative feedback which resulted in my trusted seller being removed both had bought items then said they didn't recieve them and wanted compensation of dearer items free of charge from my other items, there are certain buyers who are wise to ebays rules and will bend them in their favour and try and blackmail sellers as they know negative feedback can seriously affect their selling as this did with me.
Empty your paypal as they will freeze it and keep and show ebay all your evidence no matter how trivial. I got my top seller reinstated but its cost me a lot of sales and hassle. But shortly these people will recieve something else from the postman