Copyright? Crediting designers??

I did a post about a customer quilt I sewed. This morning I had an email telling me that I had a comment awaiting moderation. I actually had three, two of which were very obviously spam, and I immediately marked them as spam. The other I suspected was spam (going by the name), but it had a grain of possibility. The writer suggested I might have violated copyright.

I emailed the fabric manufacturer and this is the response I received:

You have done nothing wrong, we love when our fabric is shown off.  If you want to give credit to the designer her handle name is Salt Meadow Studios for Henry Glass.  It is always nice to see our fabric out there.

Thanks for checking with us.

I will go back and add the designer’s name to the post.