Urgent - Phone is now totally locked.

Hi,

I have Norton Family installed on my daughters Samsung Galaxy Ace 2.

Somehow the date and time gets set to 0 sometimes.  This may be because she has dropped it a couple of times and let the battery fall out.  However, this isn't the problem.

The problem is that when she arrived home today Norton had locked her out of all the applications.  

I have set up her account so that she can use the applications from 8am to 9 or 10pm, and is limited to 3 hours per day.  However, today at 4pm was the first time she had used the phone and she was locked out.   This was obviously because Norton Family thought the time was 1am in the morning.

When I tried to enter parent mode, I got the message "Unable to sign in - Certificate can't be validated on your device. Please make sure your device date is correct".

This means that I can't get in to the settings to fix the date and time!!!!!!!!

I have tried switching off Supervision on the website, but the Android app doesn't seem to have picked this up and continues to lock us out of all the apps.

Help please.

Thanks,

Ed.