You have multiple ways to get support as listed below:
myQ App Support in myQ App: If you have issues with the myQ App, then you can open the myQ app, select your profile to open the Account screen, and then select "Support."
myQ App Support in My Mitsubishi Connect App: You can go to the Account Settings page and select the Help option.
Use your mobile phone to call the Mitsubishi Connect Customer Care Center directly:
USA: 1-888-564-1411