She mentioned that she had spoken on a personal level to our CFO and he referred her to me, that I am the person who orders items for the office. I didn't want to question the CFO, so I assumed she was correct, since she knew his name.

I learned my lesson! The items came and the price was almost $300! The CFO had never heard of this company and my I feel like my reputation and credibility is now stained due to this error.