Free trials that convert to paid plans: how to avoid unwanted charges

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Many online tools, especially AI and developer services, require a card number before a free trial begins, betting that users will forget to cancel before billing starts. Popular workarounds such as virtual or disposable cards have limits: some are region-restricted, and a declined payment does not end the underlying contract. Cancelling immediately can also end access early, as with Spotify, while app stores like Apple and Google may keep trials running until they expire. Card network rules require merchants to send reminders before the first charge, and EU law gives consumers a one-time withdrawal right when a trial becomes paid. The author advises setting a calendar reminder a couple of days before billing and cancelling in advance.

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