Terminating Sprint contract w/o paying termination fee...legal?

[DLKeeper1]

I have Sprint for my family's wireless plan and they are just awful. Literally every month, there is something wrong with our bill. For example, they overcharged us by hundreds of dollars this month for text messaging at 10 cents per message when we already have unlimited texting. We have tried customer service over the phone, faxes, letters, and emails. Yet, they have yet to resolve the issues. They will eventually fix the bill each month, but not until we complain relentlessly. Would it be within our rights to end the contract without paying the ridiculous termination fee since they have been so terrible? After all, Sprint recently terminated 1000 of their contracts with customers who complained too much (I wish we were one of the lucky 1000)