That is a tricky one. Once you installed Enterprise and you used the VL license that
was given to you with the Home Program then any consequent install must be called in
and approved. Get in touch with the IT person at the Company that you purchased
Enterprise through and ask them to get this arranged for you
Otherwise support for Enterprise through the Home Program is free and you can call
yourself and try to reactivate the VL license. Have all documentations handy when
calling. They will verify all your documentation and also your employers good
standing with the VL.
Here you will find the Phone numbers and email addresses as to where and whom to
contact about Office Enterprise and your issue.
Scroll down to the bottom of page to North America
https://licensing.microsoft.com/eLicense/L1033/overview.asp