美国采购需求：电子、照明

I recently purchased a wireless light switch via Amazon, and I've encountered a frustrating issue. After about a month of regular use, the switch seems to have developed a problem. Specifically, it does not turn off the light as it should. This issue occurs regardless of how far away I am from the switch. On the other hand, turning the light on works perfectly, regardless of distance. I wanted to reach out to your team to see if there might be a known issue with this product or if there are any troubleshooting steps I can take. It's quite inconvenient for me, as I rely on this switch for daily use. Any guidance you can provide would be greatly appreciated, including whether a replacement or a repair could be arranged. Thank you!