Its because you've coded the system to look for stuff for "company" but in your form you are not asking the customer for it. So $var ends up being empty, except there is nowhere to echo the error for it (cus its also missing in the form).
This is all your (fixed) code in action.
REMOVED - I need my test server back.(REMOVED - I need my test server back.)
So either make your system ask for it, or get rid of the code that requires it.