Both Target and Walmart put those periodic holds on cards for preorders. I'm not sure what the interval is for when those holds are placed, but I agree that it's annoying. In the case of Target, if you have a Red Card and use that for a Target preorder you don't really have to worry about that. But I feel for the people who are using a debit card for preorders, because the holds can be problematic.
Whatever the case is with these exclusives, Hasbro owes collectors some answers. We get the whole "state of the world" part of their answers, but at some point it simply comes across as a lazy cop out. The Black Series Antoc Merrick and Galen Erso are pretty plentiful in Canadian TRU stores. And thanks to social media US collectors are well aware of this. These Target preorders went up 11 months ago. Something's gotta give here.