<prompt> Human: Ive been seeing a therapist in network for slightly over a year now. At every weekly appointment she has charged me a 30 copay. This afternoon I received this email from her:According to your information, before our initial session, your co-pay was 30. Your insurance has been reporting that your co-pay is 50. We met 45 times and theres a balance due 900 45 sessions x 20. I just noticed this. We can discuss a payment plan if you wish.I double checked my insurance plan paperwork and in fact it does state that a mental health specialist copay is 50.Im most definitely terminating my relationship with this therapist for such incompetence and the bad taste currently in my mouth she told me my copay was 30 at the beginning, I shouldve looked it up to confirm that but I forgot to. Id like to know if this is legal? Am I legally obligated to pay the difference in an incorrectly charged copay? This is going to cause a fairly significant financial burden on me whether or not I negotiate a payment plan with her.  <response>: Yep, you agreed to the service, you owe the money. Generally providers arent liable for honest mistakes like this. 