Over charge

They are so extremely rude. Call me everyday. The overcharge me for a account. They doubled the amount that they claim i own then. If anyone have also the same problem with them my suggestion is lay a complaint against them by the counsel of Debt collectors. They laughed at me when I told then numerous of times that i am unemployed and told me it's not their problem and that i must make a payment fast. They are harassing me everyday and this is against the law. I am so fed up with these people's rudeness