Apple Macbook Pro Retina Wararnty Issue

The warranty starts when the item is delivered to the original buyer. In your case, the warranty started when the person you got the laptop from bough it (which is likely to be 26 August 2014). It does not matter whether its factory sealed or not the moment you get it. If the seller claims that the warranty is 12 month, then you could argue that they have falsely advertised the item.

Or was it a commercial eBay shop? In that case you can send the proof or purchase to Apple and I am sure they will adjust your warranty accordingly.

The ebay seller purchased it a month ago. Remember it's probably not an authorized apple dealer. If a dealer purchased it from apple the apple care doesn't get registered as a purchase until a customer purchases it.

It's weird the phone technical support has expired as they is supposed to be good for 90 days. That I would call apple about.

I generally agree with the posts above with the caveat that this would be the case if it was ordered on apple.com or purchased at the Apple Store. When you buy a MacBook directly from Apple they automatically register it at purchase. Since it is doubtful the eBay seller is an "Authorized Apple Re-seller" the warranty would have started at the time of original purchase. Not sure there is anything you can do about that but you could try calling Apple and ask nicely. You could also chalk it up to being one of the reasons you got a good price on it and enjoy your new MacBook!

I don't think this happens if it was bought at Amazon.com for example. In that case you would be asked to register it during setup. Either way I think they would consider the warranty start date to be the date on the original sales receipt or delivery invoice.