freedompop 500MB free is advertised as, and emphasizes their service as free Internet

FreedomPop is advertised as, and emphasizes their service as free. The "premier after a month", was not evident when i signed up, and ONLY 500MB FREE service. NOTHING REGARDING TRIAL or 1 MONTH - showed on the dashboard page during or after I signed up. If it was there, it is very illegible and unnoticeable. I never sign up for "1 month then" or "trial" services as I KNOW that catch. The ad is deceptive and sign up process was NOT clear regarding this aspect. Even the cancel service process is deceptive. All other plan additions or options are large, bold, and colorful; while the cancel  option is barely legible with a considerably smaller font crammed in the lower right corner.  Clearly difficult to find to deactivate. I only signed up for 500 MB FREE SERVICE. not only that I have NOT been able to use the device or service EVER, since I received the device. Therefore there has been NO DATA USAGE, and yet i am being charged $24.99 on my AMEX. The monitor usage shows 0 data used, the device has NEVER worked/ connected as the code on the label from freedompop, does not let me logon!!! It is incorrect!  The advertising and sign up process is deceptive and the product is worthless if it doesn't connect.. All a waste of time and money. I am again requesting a full refund for the two (2)  months I was charged for no service and inability to connect.