> For the complete documentation index, see [llms.txt](https://docs.perkville.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.perkville.com/faqs/miscellaneous.md).

# Miscellaneous

- [Protecting against password reuse](https://docs.perkville.com/faqs/miscellaneous/protecting-against-password-reuse.md): This article describes how Perkville helps protects against credential stuffing, and what you can do to secure your account
- [Is it possible to pre-populate the email address field on the page for joining the loyalty program?](https://docs.perkville.com/faqs/miscellaneous/is-it-possible-to-pre-populate-the-email-address-field-on-the-page-for-joining-the-loyalty-program.md)
- [I need to change the support email that displays in the footer. How can I do that?](https://docs.perkville.com/faqs/miscellaneous/i-need-to-change-the-support-email-that-displays-in-the-footer.-how-can-i-do-that.md)
- [I would like to reactivate my business' Perkville account.](https://docs.perkville.com/faqs/miscellaneous/i-would-like-to-reactivate-my-business-perkville-account..md)
- [How do I control my email notifications?](https://docs.perkville.com/faqs/miscellaneous/how-do-i-control-my-email-notifications.md)
- [How do I update my billing information (e.g. credit card on file)?](https://docs.perkville.com/faqs/miscellaneous/how-do-i-update-my-billing-information-e.g.-credit-card-on-file.md)
- [How do I edit a customer's birthday?](https://docs.perkville.com/faqs/miscellaneous/how-do-i-edit-a-customers-birthday.md)
- [How do I edit a customer's home location?](https://docs.perkville.com/faqs/miscellaneous/how-do-i-edit-a-customers-home-location.md)
- [My customer signed up for a new membership, will their points transfer?](https://docs.perkville.com/faqs/miscellaneous/my-customer-signed-up-for-a-new-membership-will-their-points-transfer.md)
- [How do I cancel my Perkville subscription?](https://docs.perkville.com/faqs/miscellaneous/how-do-i-cancel-my-perkville-subscription.md)
- [How are voided transactions accounted for?](https://docs.perkville.com/faqs/miscellaneous/how-are-voided-transactions-accounted-for.md)
- [Where do I find my business ID?](https://docs.perkville.com/faqs/miscellaneous/where-do-i-find-my-business-id.md)


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