Hello Doc, sorry to hear about this situation, we will be here anytime for the after-sale service, if there's quality issue, we will be responsible and replace it with a new one for you. Please kindly reply our message on Alibaba, thank you

Hello Doc, thanks for your support and comment, we are gladly and sincerely know that you are satisfied with our product and service, contact us any time if you have further request or question, we will offer our best support as we always done!