Hello Nicolai - thanks for your question - you cannot add users if you only purchased 1 seat, you would have needed to purchase more than 1 when you initially signed-up. Not that you have cancelled, you are correct - we do continue to run the 14 day trial - but you will not be charged, however - you only purchased the 1 seat originally so therefore you cannot add anymore users
Let me know if you need more information.
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