No commercial use allowed!

The product title implies commercial use, entitled "3 Year WARRANTY EXTENSION for office accessories devices 200.00 to 299.99".
About the non-availability of commercial devices is mentioned in the product description, but this is only at the bottom:
"The WARRANTY EXTENSION ...
... Can be purchased by people from Germany and Austria for privately used equipment. Professional Equipment can not be insured. "

However, I was only aware of me of when I asked in an interview with ERGO hotline after a regular invoice including Mehrwertsteurangabe.
The contract was canceled by ERGO and the money is paid back.

I had provided the insured printer for a home office, not for an open plan office.
Granted my mistake, but this crucial info belongs to the very top of the page, under the specification of availability.