Beyond Home Entertainment has confirmed that the last 4 episodes on the Pokémon The Series: XY Collection 2 DVD Set are not included in the set. They have recalled all remaining in stores in Australia but though that have already purchased copies can return their copy when the re-released version is distributed to stores.

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Oops! Our bad, Poké-fans ... we've been made aware of an error on the Pokémon X&Y Collection 2 DVD, which was released two weeks ago. The last four episodes have gone AWOL ... this was due to an incorrect master sent to the manufacturer. If you've already bought a copy, here's what to do: (1) hold onto it; (2) wait until we advise when new (corrected) stock is in stores; and (3) return your copy to your point of purchase for a replacement.

We're really sorry for the inconvenience guys, we hope you still love us, in the same way that we love you (unconditionally that is).

Source: https://www.facebook.com/BeyondHomeEntertainment/photos/a.397814016983338.1073741825.298828806881860/718138451617558/