I haven't seen anything online so if it's email I'm sure Blacksteel is right and there really isn't anything you can do.

But if the texture CD is what it's about:

"The texture CD is not of real world materials. I don't go out and take digital images but these are simulated real world textures so that you can get the detail in your images."

I'd be upset if someone were advertising textures, giving them names of real world textures (leather, wood, etc) but all I got were squares I could make myself in PS.
There are so many real textures being sold now that Photoshop created textures should say so up front.
I was going through the marketplace as I was reading here and your texture product I came across didn't state which they were. You may want to clarify it before you run into further problems.

Just my opinion, mainly on textures and advertising them in general.

...... Kendra