Hi Katie_B if MYS77 is getting same message as me displayed it is
"Your App is being improved
The My EE App is currently undergoing some last-minute maintenance to make sure it stays working at its best.
Don't worry you can still use iyour data and allowances,and your account will continue to function as normal. Please bear with us while we finish our improvements as quickly as possible. See you soon. "
Visit EE Community
I have been getting this most times I login for past 2 months and I just uninstall and reinstalled from Google not sure what version that is but still the same.
