Gamecraft Miniatures - Product Recall

Gamecraft Miniatures made a production mistake on tehir 20mm stackable buildings and is therefore recalling the product:

There is a slight problem with some of the 20mm MDF "Stacklable" buildings. It seems that I made a mistake in the placement of the notches on the side and end walls of some of the units where they match up (or fail to match up in this case) with the floor pieces. I
Effected kits:
20MMDF103 Upper Floors
20MMDF103 Top Floor
20MMDF104 Upper Floors
20MMDF104 Top Floor
There is no need to return anything to me, I'll just send you replacement

Link: Gamecraft Miniatures