Please make sure you have received an email from Sarah Kline confirming your pick up and drop off from the airport. The name of the company is Funjet Vacations. Please familiarize yourself with the airport and location of the Amstar representative. He or she will be wearing a blue floral shirt. In the event your flight is delayed or arrival time changes, you must notify Amstar immediately by calling +52 998 881 9500. They need a minimum 2 hours notice.
I have attached the link for the airport map below.