I would like to update the contact information displayed in the attached image. Can you please guide me on how to do so?

[Gauravjain]

[jasonbayton]

Do you have access to the zero-touch customer portal? The config should be editable there. 

[Moombas]

Just to be more precise 😉 : 

Zero-Touch-Portal -> Configurations -> select the relevant configurations and change the phone number and/or mail address there