Im sorry about your friend.

A, did you check your spam? (Sorry, had to ask! Im an old computer programmer.)

B. It sounds like she went to the email when she realized her mistake, because spam or no, she was the one who failed to refill the spot. I think she is acknowledging her error by responding to the dec 1 email. If she HAD indeed responded, it would have shown on her side.

C. So she overlooked the email. How bad is this? Its worse because of your personal circumstances. But i think email has gone the way of snail mail and voice mail - you need to text or call to get a response from someone these days.

D. So i would just ask her what her preference would be, in order to avoid a future snafu.