Navigate to the Aers Webpage and click on the person icon in the top right of the screen where it says "LOGIN".

If you are on a phone, there should be a grey bar with a white arrow in the top right corner.

If you have logged in before, enter your e-mail and password.

If you have never logged in, click "Forgot Password" and follow instructions

Once logged in, hover over the person in the top right corner again and click "View Profile"

This takes you to your personal Profile Page.  Here you can update settings, view your invoices and payments and control the number of e-mails you get.  

To Update your Contact Details, Click Edit Profile

Update your information as needed and click save to save any changes you've made.