You have of store credit. To use it, simply place your order and you will be able to choose store credit as the payment method when it comes time to pay for your order.
HTC Repair Services
Choose the HTC Repair Service that best describes the problem you are experiencing with your smartphone. No need to pay additional repair fees if the same HTC phone has more than one issue. If your HTC smart phone requires multiple repairs, simply mention it during checkout and we'll contact you if any parts are required to complete the repair.