Hello @MarkG2407 ,
I'd firstly not recommend setting up a trial account with us just to ask this question in the Community. We have several searchable options available in the Community and our Knowledge Base (accessible via an internet search as well), without having to make a trial account that will result in you being contacted to upgrade to a paid account, or offer coaching on setting up your account. You can also call or reach out to us via our social media DMs.
If you find yourself unsubscribed, you can just use one a sign up form made by whomever you're trying to be subscribed to, as with any other emailing service or other service you unsubscribe from but want to later re-subscribe to. You can also contact the specific organization, and request they resubscribe you or send a resubscription confirmation email.
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