Hi Amy,
I tried my level best to find a solution for this.
1. I contacted Meraki support via support@meraki.com - Got the message as "This inbox no longer monitored"
2. Contacted Web Help team - They couldn't verify this account.
3. Contacted Meraki Team via Mobile - They are seeking production account details which irrelevant for this case.
4. Sent messages to multiple persons - but nobody has a proper recommendation.
5. Started the topic here.
Nobody has a proper answer for unlocking the Meraki Always On account.
I strongly believe it is a global issue. It is not a local issue which is related to my account. I strongly recommend creating an account on a Meraki Sandbox platform using the catalog "Meraki Always On". You will see the same error message which I am getting.
I don't know how to find an administrator who is handling the Sandbox account. I should have recorded the administrator details just before it locked out.
Note: I noted your comment. I will follow it. Thanks 🙂