Hello, thank you for your review. I’m sorry to hear you've had such a frustrating experience. I really appreciate you bringing this to our attention. To troubleshoot this issue, please follow the information in the following link. https://support.chamberlaingroup.com/s/article/Remote-controls-only-work-close-to-the-garage-door-opener-1484145692760
Should you need further help, have any comments, concerns or questions feel free to contact customer support through https://support.chamberlaingroup.com/s/contact-us