Pimsleur deceptively added charges to my Internet order Philadelphia, Pennsylvania

I ordered a beginning French CD at the Pimsleur website and received it as requested. However, later, Pimsleur sent me a larger French package with an invoice saying zero due. Pimsleur Customer Service told me that if I kept the package, despite what the invoice said, I would be charged for it. They told me that to the left of the "Submit" button that I had clicked to order the beginning French, there was a notice that I was also ordering these "Gold CDs." I had to arrange and pay for return shipment myself. I'm outraged.

I've posted this same comment as an Amazon. com review for Pimsleur French and will also notify the Pennsylvania Attorney General.