Definition: Given an Amazon customer review, write a title for the review. The preferred titles are under fifteen words.
Input: I bought two hard drives as indicated. One of them arrive defective. I contact HP support and, after three days of emails, told me it is not an HP product !!!!! The product number does not match any HP product number, and the serial number is not an valid HP s/n. And they are not responsible for the substitution. Two days waiting Technodeals USA to provide the HP s/n and they do not answer. Is it really an HP product as you show?

I bought two hard drives as indicated. One of ...