I just got my Quilter's Suede fabric today in light cream from Fabric.com. It is definitely flannel, but it doesn't have anything written in the selvage.
Is it possible that part of the Benartex line is just a 100% cotton suede look, but not a flannel fabric? When I did a little internet searching on Quilter's Suede some sites had flannel fabric written in the description and some sites just had Quilter's Suede listed as 100% cotton fabric and not listed as a flannel fabric. So maybe you did get the wrong fabric?
Hope this helps, Maribeth