If we are ordered by time, vendors, delivery, according to the times.It would not be any problem!, so I think we do not need to answer questions to vendors in every. The story!
If we order at any given time. Then vendor's delivery time as well , it would not create any problems, so I think that we do not have to answer questions to the seller in every matter what.
If we order as scheduled. Then the seller's delivery time as well should not caused any problems, so that we don't need to answer to the seller in all. Of things.