The bank automatically resolves the dispute in the cardholder's favour. In Sprwt the dispute becomes lost, the list shows Deadline Missed, and the detail page's Timeline reads: "Unfortunately, because you did not submit evidence, the bank automatically resolved this dispute in the cardholder's favor. The disputed amount of <amount> has not been returned to you." The customer keeps the disputed amount and the dispute fee (shown as Fee in Dispute details) is not refunded. Always check Stripe > Disputes with the Needs Response filter regularly, and respond before the Due by date.