The charge is supposed to be $17 for the first passenger and $10 for additional. We didn't know the rates the first time we took it. We were charged $34 and then gave a tip. We found the rates from their site after. On the way back we were charged the $27 (2people) and were charged three times. We got two overdraft charges because of their mistake. It took over a week to refund the money and wouldn't refund the overdraft charge. Their excuse was that it happens all the time so they can't refund that. I couldn't believe it.