I've recently upgraded my computer and Office for Mac hit it's activation limit. To be clear, the old computer was formatted and the new computer is the only one with this copy of Office.

I attempted to activate by phone, however when I finish entering my installation ID, I am asked for 'how many computers have installed this version of office?'. When I reply, the phone system immediately hangs up.

I was told to call Office Installation and Activation Support ((800) 936-5700), but after identifying my product to be Office for Mac 2011 and that I had not activated, it returns me to the same phone-registration system.

Is there a number I can use to get in touch with someone at Microsoft?