over payment

when i was overpayed i had sent all the information in that was needed and they still make me pay it back i had an a appeal they still say im at fault i dont think so and if i pay every month i dont think its fair for me to have to give them my tax money if thats the case then i should not pay a monthly rate but when i made my agreement it was under the old law not the new one if they take my taxes its going to be and very big issue because i will sue the social security adminatration because they are trying to get over on people and thats not fair to someone trying to repay it and they still take they money people work to survive and they just making it harder then what it is for people