<prompt> Human: They knew I was self pay, but somehow only charged me 110th of what was estimated and said that was their special discount when I paid them after the procedure. Im guessing theyll just turn the unpaid amount over to collections. Im planning to request a mailed detailed bill that captures the full amount and the amount Ive paid so far and pay in person once I receive that. Anyone have any other insight?  <response>: They often give discounts to self payers, just save the proof that you paid in full 