LabCorp review: A thoroughly dishonest set of shake-down specialists

I spent untold hours of my time getting LabCorp to admit that they should NOT have charged me for labs tied to my annual physical. I was on the phone repeatedly with them and an IBX representative, and the result was a series of increasingly insulting, hectoring letters threatening me that a collection agency would be in touch. After 8-plus months, they finally backed off. I just called IBX and these shysters are trying the same thing again for THIS year's physical. Disgusting. I will be doing everything I can never to use them again.