My American Airlines flight from Paris to Chicago was delayed over four hours. My flight was initially scheduled to leave CDG airport July 24, 2019, at 12:10 p.m. On the day of departure, I received an alert stating the departure time was pushed back to 1:16 p.m. Minutes later I received an alert stating departure time was pushed back to 4:35 p.m. Because I had pre-paid for shuttle pickup at the hotel and the driver was en route to the hotel when I received the second alert, I could not get a refund or reschedule the pickup due to the shuttle service's 24 hour cancellation notice. The shuttle service picked me up at 8:30 a.m. and I sat at the airport until American began boarding at 4:00 p.m. American provided sandwiches, chips, and bottled water at 1:00 p.m. for those booked on the Chicago flight. I promptly emailed American's customer relations describing the situation and requested compensation under the EU law due to the long delay. I received a reference number after sending my correspondence and as of today, August 1, 2019, I have not received a response to my inquiry. I have never had to request compensation from an airline for any reason and I'd like to know if I should take this up American's corporate ladder if I have not received an answer after the allotted days (5-10 business days)? Thank you.