Important: 

Please note that  B-grade item meaning the has been repaired and refurbished by the seller. For A/B Grade products, we only provide repairs or replacements and do not accept refunds, if the delivery date has exceed 14 days. We recommend that customers check, whether the machine is working properly, as soon as possible after receiving it. If there is an issue, please report the issue/defect to us immediately, and try to provide pictures, or videos, so that We can provide you with solution as quickly as possible. We hope you enjoy your shopping and keep in touch. Thank you.