Oh, how frustrating for you! But I would give them another day or two to respond to you.
Keep in mind that a lot of quilting businesses are small companies with only one or two employees. They may be inundated with orders or emails, they may not work weekends, or your email may have ended up in their spam filter. Quilt business owners often travel around to vend at shows and teach classes, so they very well may have been out of town for a few days.
If you don't hear back on Monday, then try again. Maybe a phone call so you know they received it. Hope the correct book is on it's way to you soon!