LabCorp review: service refused over 1 past due bill, demanded payment or no service

I went to my local labcorp, same one i've been going to for years. Upon checkin I was notified at the kiosk that I had a past due bill, and declined payment at that time due to low funds. Upon calling my name for the order the receptionist informed me she would not be able to serve me if I couldn't pay her at least $60, I informed her I had no extra cash at all and couldn't make payment at this time and then I left bc she refused to help me. Terrible service