SCAM! invalid activation key !!

I just spent several hours trying to install the office suite and each time the same answer! Invalid activation key !!! I was even on the Microsoft website to try to download the software by returning the key activation invalid key = same answer. So I guess that Amazon is selling one of the many pirated versions of the software! It's a shame!
I return this product immediately requesting reimbursement. As to flee seller !!!!!