Currently with Snap and have 100gb data pack on top of the broadband and calling plan. That plan comes standard with 25gb so we end up with 125gb per month.

Is there a way to change it back to just 25gb per month. I see you can with a new account but cant see an option to on existing account.

Also if I go back to 25gb per month, so have no extra data do you still get the unlimited nights 1am to 7am.