Can I Sue A Company For False Advertisement?

Ok I'm not talking about millions of dollars or to get rich of this but more about the principle. Maybe get my money back from over paying because of false advertisement. Anyway I want to sue sprint for false advertisement as I have been a victim for over 2 years and I think is time I do something. As of now I have sprint and when the iPhone 6 came out they had this new deal to trade in your old iphone and you'll pay 50 dollars a month. Well so far I've been paying 95 dollars, the same thing I use to pay when I was under contract which I was promised that I would only pay 70$ a month and they charged me 95$ still. Before I purchased the iPhone 6 and traded in my iPhone 4 from sprint, I asked the vendor if it will legit be 50 dollars a month and he firmly stated that it would. 50 dollars for the service plus 11 to pay off the phone in payments. And with the extra taxes the company charges i calculated that it should only be the most 70$ if anything. I was wondering if I could Sue spring for this? As in the past under my contract I was over paying as well as I'm now? Anyone has a link to any lawyer I can speak to to have legal advice?

You can sue them, but you probably not win. Did you read every word in your contract before you signed it?

Your math sucks so no, you will lose

I think you're just calculating the extra charges wrong. Did you look at your itemized bill? However, if there really is a case of false advertisement or overcharging, there might be a class action lawsuit that a lawyer would take. That's when a lot of people have been cheated or mislead. Some lawyers will take that on contingency- that is, they don't get paid unless there's a settlement- then they get most of the money in the settlement.

Contact a consumer advocate.