Business ProfileforVA Eastern Colorado Health Care System

I was admitted to the civilian hospital in March 2020. They incorrectly billed VA for my services instead of my primary insurance they had on file.VA has been billing me a copay (approximately $1500, plus interest), every month since Feb 2020 (when I started working this issue. I have talked to VA ***************** more times I can count on fingers and toes, I have talked to VA *************** more times than I can count on my fingers (to include the last time, when they said Oh, VA paid your ****, we cannot help you! Why they did not tell me that from Day 1, I do not know), and the local hospital billing department at least another 20 times.I have sent VA, three billing dispute letters (Oct 2020, Nov *****************, and Dec 2020 - *********** **) and have heard nothing, although I have been told they would provide me a response within 60 days.VA ***************** while very friendly, can only tell me, they will send **** **************** center) a message (no phone, no fax) and I need to follow-up with them after 30 days. Today was the second time they told me that (after waiting 30 days from last time).The local civilian hospital billing department has since billed my insurance company, and have sent VA a reversal payment check (and I assume letter) on November 12th, 2021 and I have still not heard anything except a new **** in the mail last week. I have also provided the local ******************* contact name and number to help resolve the issue.Eleven months since starting, three dispute letters, more than 50 (or 70) phone calls, to at least 7 different places did get the ***** hospital to take care of their responsibility, but I can get nobody in VA to acknowledge that anything is wrong on their end (and a new **** arrives in the mail). Can you assist in getting my issues to a conclusion?I assume, it is illegal for VA to not resolve billing issues when they know the other agency has already billed their primary insurance for t