AmeriCollect Credit Reporting Complaint

AmeriCollect Credit reporting department,

Credit reporting company's investigation Problem with statement of dispute New Jersey

HI, I had been to the hospital on -/-/2016, i gave the insurance details to the hospital later and i didnt hear anything from the hospital and never got any news from hospital.Later by -/-/2016 i called the hospital and gave my change of address information to the hospital also ensured that the hospital has insurance details. After that they told they will contact insurance company and then get back to me but have not hear anything from them. I was waiting for bill, and now i see there is outstanding of $150.00, i am not sure why no one contacted me as i have provided everyone my change of address as well as phone number. I do not agree to this collection, i wil pay $150.00, please let me know how do i pay them and also please remove the admended score.