Microsoft Office 2011 Mac 64 bit upgrade

I purchased Microsoft Office 2011 along with the purchase of my MacBook.  I did an upgrade yesterday only to find that Office 2011 will only run on 32 bit.  The upgrade now requires Microsoft Office to run on 64bit.  I read in many places that Microsoft has no intentions of supporting this upgrade so therefore, I can no longer safely use this software, that I purchased, on my mac.  Microsoft is forcing me to purchase something I have already purchased earlier.  I do not care if there are newer versions of Microsoft Office.  I purchased Office 2011 and Microsoft should still honor that purchase by providing the 64bit upgrade.  I contacted support thru their chat box and was only directed to this site where I can look up or post my own questions.  Really great customer support Microsoft! Thank-you! NOT.  I wish to have a refund or a product key to another Microsoft Office that will run on Mac at 64bit. I'll be holding my breath awaiting even more outstanding customer service.