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I checked your webpage in a few different browsers and I was able to view the full form in each one:
In any case, you can always switch your embed code to the iFrame code and adjust the height of the frame:
The above guide also includes how to adjust the height of the frame. This usually allows for the full form to appear in your page.
If this still does not, let us know and we will be happy to see what else we can do.