Correction
I went back to the lounge and asked the agent who had told me lounge access was only for Ambassador members and she corrected herself. She said Ambassador and Platinum members.
I suspect what happened is she greeted me as PPE with Ambassador and said I would get lounge access because I was Ambassador member. I asked if that meant Ambassadors only and I'm positive she replied yes, but it was probably a misunderstanding due to language issues. I'll go back and amend my original post. Whew!