Worthpoint Unauthorized Charges After Cancellation Internet

Worthpoint appears to be nothing more than a boiler room operation wrapped in an antique search engine.  Do Not give Worthpoint your Credit Card!  It will be quite difficult to get them to stop charging it.

I signed up for a "free trial" which I then could not log into.  Trying to get help, their technical support obfuscated the process even further.  After two days I sent an email canceling and didn't think much of it.  Worthpoint ignored the cancellation email, and charged my card for over a year.  They refuse to refund the charges even thought I have a record of my troubles logging in, a record of the cancellation request, and have never actually logged into the Worthpoint site. 

Clearly Worthpoint exists solely for the purpose of collecting credit card numbers and charging them.  They don't seem that interested in building a reputation as a legit business.  For example, Worthpoint has a phone number, but they don't answer and don't seem to return calls when one leaves a message.