Best answer by GabrieL
I've spoken to the team, and they've confirmed you just signed up. This is relevant because the 'submit meter reading' option in the app becomes available 5 days before SSD (Supply Start Date) as we can't use any readings sent before that time.
This is why this button is not showing on your phone yet, but It'll do so shortly!.
As for when to send us a meter reading, don't worry we'll let you know.
This is what you will see:

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This is why this button is not showing on your phone yet, but It'll do so shortly!.
As for when to send us a meter reading, don't worry we'll let you know.
This is what you will see:
