I'm thinking his question is more related to the fact that if you want the new (updated) connector for the 43, a Glock Armorer has to get the serial number of your gun and request the new connector from Glock. (The new one isn't available for general purposes yet, even though from what I hear, some newer/recent G43s come with it installed. It makes for a MUCH better trigger than the original connector.) It is pretty much the only way to get a 33564 connector.
A bunch of us are Glock Armorers, and any of us can throw in the connector for you for free. Not a big deal, takes about a minute.
However, regarding Glock Armorers who regularly contact Glock and order stuff, contacting Chris Zeeb would be my suggestion.