I've done a few of these. VP's Customer service is very nice to deal with. When you get the CDs you call them & they give you a return number to put on the envelope & you return the CDs. Then, they don't charge you for the product & I believe they refund part of what you paid.
This past time I only had to send back 1 disc, so I sold the other 2 on ebay for a little bit more money.