I went to the emergency room XXXX XXXX XXXX XXXX XXXX in XXXX, NY on XXXX/XXXX/14. I keep getting notices and phone calls from a company called XXXX XXXX XXXX, XXXX telling me to pay a bill for {$400.00}. My explanation of benefits from XXXX XXXX shows member responsibility as {$0.00}. I sent the EOB to them XXXX and it has had not effect. They have now referred me to a collection agency called Professional Claims Bureau , Inc . I have attached all relevant documents. Please help.