New $2 Coin - Dawn Service, Not Released Yet But Already Selling!

Just found out by accident while looking at ebay lots, that there is another new $2 coin about to be released. "Dawn Service" colored coin and it looks like a nice design and I am interested in getting one for my collection.

I usually get emails from dealers and the RAM that there is a new coin about to be released for sale but I haven't seen anything yet aboutthis coin. However, these coins are already selling despite not being officially released until next month. It makes me wonder how those 'buyers' found out about those coins so quickly. Those coins that have been sold so far were offered as "buy it now" or "best offer" - not as an auction over several days. The 'buyers' must have had prior notice that those coins would be available? How else did a dozen or so coins that have not been released yet (or advertised for sale through normal channels) get sold within three days and for similar prices?

Call me a cynic but to me it looks like dealers with early access to these coins 'sell' in house to set a price. If those sellers aren't dealers then who are they and how do they have guaranteed access to the coins to sell? Going to be interesting to see what genuine buyers actually pay for these coins once they are released. I'm very sceptical that a handful of coins are sold prior to the official release and they all get sold for similar prices without being 'auctioned' and this a genuine and legal practice. I really hope I am wrong and would love to be proven wrong. Anyone know anything about what is going on?