My experience was exactly the same. They called and called and called until I finally answered. I fell for the trial period offer and then failed to call and cacel in time to avoid a relationship with this company. I should have known I would do that because I did it before and vowed to never fall for it again. As the saying goes, fool me twice, shame on me.
I was told there was a "one time fee" and that no other charges would ever be incurred by me for the membership. I received a CD with several files on it, which I thought were catalogs, or software that would make their website pop open on every launch of the Internet, or something that would infect my computer with malware, so I didn't intall it. These continued to come in the mail, which made me think that they were really desperate for me to put this on my computer. I didn't know they were charging me for them until they racked up $140 in withdrawals from my account (too busy/stupid to check bank statements carefully). They won't refund my money. I wonder whether I could file a fraud charge against them here in my state... just what I need is something else to do.
My advice to anyone considering CrystalVision: RUN FOR YOUR LIFE!