It is pretty well accepted by the players that the timer on turning in Bells for the Olthoi Queen quest is broke, but a bit of official confirmation of it in the Sage Tower today by Stormwaltz.
I can tell you that, yes, it's broken, and a bug was filed on it.
I can't tell you when it will be fixed. As with most bugs, I wouldn't be able to say "when" until you'd already seen it in the Build Notes.
There you go. I hope that timer and the "spray" timer are fixed about the same time. It will be interesting to do the quest as it was originally intended.