I visited the Pathcare branch in Worcester for an advanced PSA test

I visited the Pathcare branch in Worcester for an advanced PSA test. The assistant initially offered the basic test, but I explained I already had those results and only needed the advanced test. She called her manager who agreed with me. I paid the amount communicated with me upfront. However, I now received an account for both tests, despite clear communication that I only needed the advanced test. Multiple phone calls and emails led to the accounts department manager referring me back to the branch. The original assistant called me, insisting I pay for both tests. I reminded her of our conversation and the second staff member's instructions, and she agreed to investigate but didn't follow up as promised. I've received a final demand letter for the full amount, and I'm upset about being passed around and not receiving a resolution. I've asked to speak to the CEO, but my request has been ignored. I'm not paying for someone else's mistake and will only pay the outstanding amount for the advanced test.