I too received the call. Apparently not enough were made or something along those lines. I'm not quite sure how the built to order concept is supposed to work if they aren't going to build what was ordered and I'm not overly happy about this. I only ordered direct through Lionel because of the special package they were offering, otherwise I would have supported a smaller hobby shop by ordering through them. The 10% is great, but now I'm still out the two cars that I would have just ordered separately had I known the individual sales ones would be shipped.
I nearly missed out on the matching two packs that I had ordered in May of 2019 when announced because Lionel shorted the major dealer that I had ordered (and prepaid) from and all the dealer could do was refund my money. Thankfully Lionel had a couple sets left in stock in their online store, but I certainly shouldn't have been left scrambling to get ahold of those sets and the dealer shouldn't have lost a sale due to that. Needless to say, I hadn't preordered anything this major before and probably never will again after this experience.