I'd probably wait one more day before contacting them. I THINK my Tupperware points are always there by the next day, but I'm not sure (I don't always check right away). I also usually order early in the day (before noon).
I've noticed some of the "visit site" emails that say points will be credited overnight are not always there until after the second night.
So, I'd wait until tomorrow just to possibly save yourself the trouble of emailing them. I doubt you'll have any problems. If they don't credit the points, they'll probably only want to see a copy of the tupperware order confirmation email you received.
Let's see if anyone else has any experience with this...???