You can also change your flight by calling Aeromexico's customer service centre. Be sure to have your reservation code and flight details handy when you call. The customer service representative will help you make the necessary modifications to your itinerary. Aeromexico Change Flight has different change fees and fare restrictions depending on the type of ticket you purchased, the origin and destination, and the date you are travelling. Some fares may be non-refundable or non-changeable. Check the airline's website or contact a representative for more information.
I hope this information helps. Let me know if you have any additional questions or concerns.