If your passenger has forgotten something and asks you to return to the pick up location on a fixed price job there are a couple of things you should do.
First, agree with the passenger additional payment for the extra time and let them know you can settle the payment at the end of the journey. Our preference is that they pay the extra with cash or credit/debit card. Please wait until you get to the destination (airport), process the fixed price job as normal, and then process the extra payment as cash or using Fast Pay for cards. Please make sure you process the extra payment after the fixed price job, or you may risk scrubbing the fixed price job by mistake.
If the passenger cannot pay by cash or card, another way is to agree with the passenger that they will increase your tip to a level that covers the extra time. They can do this anytime during the journey by sliding the tip slider in the passenger app.