Tricking Amazon shipping?

[obriensg1]

So help me out guys.

I swore to myself I'd cut back on DVD/Blu-ray spending, and I haven't bought a TV on DVD set in months, which is good since there are some I've held onto for YEARS. Been watching shows on Netflix while trying to catch up Magnum P.I., Black Donnellys, Millennium and Home Improvement.

Still, I still need Everwood Seasons 3 and 4 and Everwood 3 is $13.49. Problem is the two years I got for signing up as a Student Amazon Prime user just ran out. I've got some pre-orders locked in for the 2 days shipping with no minimum cost, but no more after.

One of those is for "THOR", and I don't care if I get that the day it comes out. If I order Everwood and re-order Thor at the same time, I get free shipping, even though they're separate. That trick I used all the time. What if I cancel that Thor after the fact though. Will they retroactively charge me for needing to ship Everwood?