HUGE - If you already knew about this, shame on you for not sharing
Bookmark it, save it, use it. This site just saved me a item not received refund in paypal.
Long Story Short - Guy buys item, says it's not delivered, tracking shows delivered on USPS website, guy opens case in PAYPAL**** (see note below), I would lose case due to tracking to the UK only..... www.trackitonline.ru saves the day.
****Paypal has a MUCH stricter policy for shipping international. Where ebay says you must prove the item was delivered to the Country (in this case the UK), paypal says you must prove that the item was delivered to the correct city (knotting hill). HUGE loop hole for people who avoid the ebay case and jump over to paypal knowing this. With a little luck http://www.trackitonline.ru will have additional tracking information online (like they did in my case). To further help protect yourself, 100% make sure you save the 4th page on the international customs forms that are stamped by the post office when you send the package out. If a case it open for an item not received (that shows delivered online to the country) I was told the majority of the time if you scan the stamped customer form and upload it to the case, paypal will verify the tracking number matches the ship to address and you will win. If you CAN NOT prove via online or the customs form it was delivered to the correct CITY, you will LOSE the case even
I should note, this is very rare (1st time ever for me) and really takes someone overseas knowing what they are doing to beat the system. Most everyday people just open a case in ebay and if you do everything correct you will be protected, BUT if they know the rules they will try to avoid ebay and jump to paypal to open the case. You need to take all steps to help protect yourself in case this happens.