I would give it about a week after it shows that it was received in Miramichi in order for it show up online. Calling a day or two after it gets their likely won't help as they have quite a few applications to get online. Just be assured that the day it shows up there is the day your 28 days start.
I assume you are applying for RPAL if you will be asking about references calling in? From what I gathered when I called, if it's just a PAL then they do not contact references.
Mine still isnt on the website but now i want to ask is the 28 day waiting time include weekends? Also does the 28 day mean it takes 28 days for it to be posted online on the Check Pal Status page. Thanks