Originally Posted by fumje

They don't very often actually try to renege, so I don't believe you have to worry that the lack of something printed means you lose out.

But they can be quite disorganized as Xyzzy related, so it may require persistence and patience (which of course is silly).

I find email the route for dealing with these that requires least total minutes of attention from me, but it can be slow. If you want it dealt with sooner rather than later, phone is the best route.