I think it is worth a call.

When I had a JL itin waiting for ticketing like this AS told me they would hold it for 3 days IIRC and the hold would expire at midnight (IIRC) on the third day. I think it may have even said when the expiry time was if I attempted to pull up the res (would come up with an error but in there somewhere was the expiry time). Since you are up to two days already I would call in to make sure they either ticket it or extend the hold. Get names and note the time of your call in case they do not come through on their promises.