Have you canceled your flight without thinking, and you have to read the details of Aeromexico flight cancellation for more information?
https://budgetflightsfare.com/blog/what-is-the-charge-to-cancel-a-flight-of-aeromexico/

Aeromexico cancels flight
For the flight cancellation, you must first visit the official website, www.aeromexico.com. After that, you have to go to the manage booking option, fill in your details, and their cancellation option is given from there; you have to cancel your ticket. After the token cancellation, you will get the refund within a week, so this is the cancellation process of Aeromexico. If you are confused, you can call the Aeromexico customer service number: US: 1-800-237-6639 or dial 8016308358 and get all the information from there.

I hope you have understood all the information helpful for you for any doubt call customer service number: US: 1-800-237-6639 or dial 8016308358