CD Diet & Health Rip off San Diago California

I responded to an add on facebook to try a free sample for $4.95 no where on the ad does it say you have 14 days to cancel the product or you will be charged.  I tried the product which didn't do anything and after 30 days received an invoice via email from the company to pay $94.95 for the product.  I answer the email that I didn't want the product and received a cancellation number.  One month later I received an email that they were going to send me more of the product.  I told them I don't want it and cancelled several weeks ago.  I again received a cancellation email.  Today I received product in the mail.  I called and wrote them to send me a addressed postage paid envelope to send all the product back to them.  They said they were sorry and will cancel my subscription and told me to keep the product as a gift.  I told him I would be throwing it out and will not pay my credit card for the product.