Vericred and Ampath

Settled an account with Ampath in January 2018. The account was then sent to Vericred. Despite advising them of the account settlement for almost two years, I have been told I must pay them for their costs. The account was settled before Vericred contacted me. I have confirmation from Ampath that the account has been settled and sent Vericred the proof that the account has been settled, yet I am continuously being hounded for payment. None of the emails that i have sent them with the proof has been answered either. Absolutely poor service as neither Ampath or Vericred are prepared to LISTEN. They want to demand their costs. If only they go back to the recordings for the last two years they would find that I denied owing Ampath an account.