If you have booked a flight ticket with Aeromexico Airlines but now you want to cancel the flight because of the unforeseen problem or situation, you are allowed to cancel the flight any time before the scheduled flight departure.
If you cancel the flight booking with Aeromexico there might be a cancellation fee or not it depends on the condition of Aeromexico cancellation policy in which you are cancelling the flight
Once you cancelled the flight and requested for the refund the amount will be credited in your bank within 7 working days if the payment was made by using credit/debit card and it will be transferred within 20 days when the payment was made by other methods.
If you have more queries to ask then you can contact customer service team and they will help you in providing answers to all your issues throughout 24x7.