They say I owe for things back in 2016 2017 and 20...

They say I owe for things back in 2016 2017 and 2018 bringing total over 200.00 never never received a bill in 3 years. Now need new cpac can not get it until paid they said medcare said deductedable was not met have letters that I met all my deductible.someone in office is not doing There job if I did not have to deal with them I wont