I don't know for certain however RCM behaviour seems to be that NCLT are minted in at least 2 tranches. The first is for guaranteed or highly likely sales whereas the second and subsequent tranches are to fill confirmed orders up to the final mintage number. I say this because it is common for some folks to get a coin within a week or so of the release and order whereas it can take months for others. Coin resellers and other higher volume purchasers will often be included in the 1st group. I know that I have waited 3 months for a coin while others are posting pictures of theirs.
If you are concerned, give the RCM a call. They will be able to answer where your order is in sequence and may be able to move it higher on the list.