Disgusting Ampath

I am so disgusted with Ampath as if my medical condition is not enough to deal with, for the last year whe have been trying to get a outstanding ampath bill but to no avail now collecting agents are harassing me with outstanding amount without ever sending me outstanding bill . My life altering condition is enough to deal with now the stress of new blood work is stressing me even more because I am still waiting for the old bill.