Why can't I upgrade my student version of creative suite to a professional version?

I purchased the student version of creative suite 6 in January to learn the software for a class that my job was paying me to take.  We decided that the software was worth investing in so my company wants to upgrade my student version to a professional version.  ( It turns out I am not allowed to use student version software for professional purposes - I don't know if that is a law or just a rule).  So I call up customer support to pay for the upgrade and cancel the student version.  I am told this isn't possible and that they have to create a whole new account and charge me a cancellation fee for my old account.  Then they send me to a sales rep who was a total jerk and told me he couldn't help me and spent 20 minutes seriously making fun of me.  What kind of sales rep makes fun of people?  Then he sent me back to customer support who of course couldn't help either and they had to then sent me to a cancellation guy.  By this time, I had been on the phone for an hour.  So this guy tells me my current contract requires me to pay $79 a month and to cancel it will cost my $280? WTH?  My student version costs only $30 a month.  I have invoices to prove it.  So then he charges me $112 to cancel but he can't set up a new account.  Of course, that has to be done by somebody else.  But after this horrible experience, why should I sign up AGAIN?  And why did I have to pay $112 to cancel when what I really wanted was an upgrade?