I returned my box over a month ago and Im still getting bills like I still have a account please can you stop that

I do not have the paperwork in front of me because I was shocked to see the email but I believe the equipment was returned to UPS I returned it myself probably around the 12th of February and I paid my bill before that could you please stop sending me bills like I still have an account I don't even live in Florida anymore could you please stop that it's very disconcerting thank you