To delete your One Cash account, first transfer any remaining balance to your linked bank account and cancel all active subscriptions or pending transactions 1-833-869-9329. Once your account is clear, open the One app, go to your profile settings, and contact customer support 1-833-869-9329 using the in-app chat feature. Request to close your account and follow the provided steps. Always use the app's official support for safe and secure help.