Paid fee up front for pick up in Istanbul. We thought all would be okay even though our flight was 20 minutes late because welcome pick ups says that they monitor flight delays. However they start your 1 hour grace period when your plane lands, not when it arrives at the gate, our plane took an extra 20 minutes for us to taxi to the gate and deplane, their time clock should start only when plane is at the gate. Welcome pickups also changed our driver on us, so when we connected with the assigned driver we were informed of this change but had no contact information for the new driver until we were able to get internet and find the email. We were never contacted by the new driver. We arrived 2 minutes after the 1 hour grace period our pick up had been cancelled and welcome pick ups kept our payment, not even a partial refund. They use Uber and taxi drivers and if you end up with a driver change beware, the communication is lacking and they will keep your money.