On your service request, you will be required to provide a payment method. After the service has been completed, the technician will request you to sign to acknowledge that the order has been successfully fulfilled. Once you have signed and confirmed the completion of the service, you will then be charged. In the event that the technician is unable to complete the service for any reason, they will notify HelloMacWin, and our support specialists will get in touch with you to discuss your available options. If you are not satisfied with the service provided, it is advised not to sign off, as you will be charged at that time. Our support specialists will contact you to understand the reason for your dissatisfaction and to explore ways to ensure your satisfaction.