I recently purchased a "pest free ZONE" Solar Ultrasonic 360 Degrees Cat and Dog Repeller but it isn't working correctly. Occasionally it works, and detects motion (flashing light, ultrasonic clicking), but most of the time it does nothing and I am able to walk right up to it and pick it up. Sometimes it starts flashing/clicking after I pick it up. I have tried charging it via cable, though it's solar powered and in a sunny, south-facing spot, but it makes no difference. To add insult to injury, I watched the cat I'm trying to deter from fouling my front lawn walk right up to it and rub against, yesterday. The final straw, you might say. How do I return this product? Your policy states that products must be in an unused state, but this product has been outside for more than a week now, as I tried to get it to work.