If you order Dr. Franks spray for muscle aches/ fibromyalgia, etc. put delivery comp. when you return it. It proves you mailed it. They would not give me my money back as promised, but I provided the delivery confirmation number to my credit card company. Problem solved, I got all my money back. Don't be fooled by their money back guarantee. If it don't work & you send it back, make sure you put delivery comp on it. Geeze...all these scams!