When I spoke with the girl in member services, she told me that I was unrealistic on what I was looking for.
But I was told when I joined that I would only meet people who fit my exact criteria.
My story is VERY similar to the original poster's story.
A few years ago, I had the EXACT same experience with the "Singles Station Dating Service" BUT in the Oklahoma City, OK, location rather than the Tulsa, OK, location.
The women they matched me with were all 5-7 years older than the age range I specified.