Scamming heartless salesman

Was scammed into signing up for mobile service on a apple iPad. Was told it was part of my internet bill but that was a lie. Now im told I cannot return this device or cancel the service for 3 years. I explicitly said I did not want this iPad but the salesman would not update my internet service without the ipad included. Forced into paying on a mobile device for 3 years is a very scummy thing to do. I simply want to cancel the [Edited: "Profanity"] service and return the stupid iPad.