Fidelity has a pretty low response time on weekends and holidays as well, they don't seem to check their email at all after around Friday around 10:00 AM until mid morning Monday.
I contacted Bonnie directly and she said to call her as soon as I see what I'm looking for so that's my plan. Fidelity has the best priced contracts that I've seen so it's worth a little extra hustle to buy from there.