You will typically know you owe Bolt (the ride-hailing and delivery service) because the app will prevent you from booking a new ride until the outstanding balance is settled. If a previous payment failed due to insufficient funds or a bank rejection, Bolt usually covers the cost to the driver immediately and then marks your account with a "Debt." You will see a prominent notification or a red banner when you open the app, often stating "Payment failed for your last trip." You can also check this manually by navigating to the "Payments" or "My Rides" section in the main menu; any trip with an unpaid status will be highlighted. Bolt will also send an automated email to the address linked to your account detailing the amount owed and the reason for the failed transaction. In some cases, if the debt remains unpaid for a long period, they may attempt to automatically re-charge your saved payment method or restrict your access to other Bolt services like food delivery or scooter rentals until the balance is cleared.