Do i have to wait until the Ring Connect Plus trial is ended for cellular back up?

Fyi I'm in the UK, not USA I've just bought and set up a ring alarm, and signed up to the ring protect plus scheme to get cellular back up for the alarm. However, I can't see any status for cellular back up on my base station settings page and when my broadband failed the alarm went offline rather than connecting via cellular. When I access my account it says the devices are on a ring protect plus trial, and that my subscription starts on the 11th Feb (I set up the alarm on the 11th Jan). Does the cellular back up only become available when the subscription starts properly?