Hey Otinan,
Sorry to hear about the issue with your Collector’s Edition purchase.
Our team doesn’t work on the Gear Store, so we can only encourage you to contact the Gear Store support team if you need help.
And while we don’t have any information on the availability of the Collector’s edition in the future, I would encourage you to keep an eye on the site, some players have apparently reported that it has been restocked from time to time.