How to remove the blank space at the bottom of my embedded form?

1) I have a lot of white space from the fields to the very bottom of the form - even more than on the shot attached - any ideas ? I had to add my address to the bottom of form for info as it caused more format problems on my joomla page adding after the form code. so i did a bit of a fix myself. Definitely a lot of white space to then get to the bottom of the page http://www.infiniteexcellence.com/contact/contact-us/contact-us.html can see better here

I have checked your form and noticed that the iFrame's height is greater than the needed, the form's container (which is an HTML element on your page) seems to be increasing as the form's iFrame code increases.

Please  try setting the iFrame's height to 1600px: 

In case the blank space  still shows up, please check the height value of the element with id "mainmiddle", you may need to change the height value too: 

I hope this helps. 

Thanks Kevin that worked well.
Colette
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