Do I have any recourse in health cost misinformation?

Long story short I went to quest for an unusual blood test. The technician pulled me aside and said this could cost $900.

I called my hdhp before proceeding and asked for a confirmation. The rep pulled up my account and the tests I was planning to get and told me I could expect to pay $30-100. I noted the massive discrepancy. The rep responded by telling me "that's because it's a negotiation."

I reluctantly took the tests and, of course, just got a bill for over $900.

Do I have any negotiating power by having a (hopefully recorded) conversation with a rep assuaging my fears that I wouldn't be billed exactly what I ended up being billed?