No further charges. Cancelling stops all future renewals.
Access usually continues until the end of the period you have already paid for, unless the
terms of that particular application say otherwise.
Cancelling is not the same as deleting your data. Your account and its content remain unless
you ask for deletion — see How do I request deletion of my personal data?
You should receive a confirmation by email. If nothing arrives, write to
info@alvinai.studio and we will confirm the cancellation in writing.