Worst Service and Unfair Blacklisting

I have been calling FedHealth since last year to make payment arrangements and I was sent from pillar to post. First they told me to call their collections department then they told me to call VVM and VVM did not have my file. I have been calling every month without any help but they blacklisted me. How do I pay or make arrangements when no one knows where I must pay or who I must talk to. Please remove my name from ITC or else I am sue.