The call we are getting is not actually a "checkout" call at all, its a courtesy call in reality.
It will simply give you an estimation of your production / delivery month.
Another email/ call will follow when the car is 100% confirmed, later, and after you have decided finance or not etc.
The actual check out call will give you 3 date options for collection / delivery and you should be choosing one of these dates or risk the consequences. Dont forget, if you are away for all 3 dates, then you can simply get it delivered to a dealer and collect it at your leisure.