Automatic pet feeder

I bought this pet feeder to allow my one cat to access the food at night; however, since I have 3 more, they went crazy and nudged each other out as it's only for one cat at a time. - I couldn't return it to Amazon as the return window had closed- It's used JUST ONCE, but I can't write New, so Like New is in the condition, but it is New- selling it at an affordable price, nowhere near the Original price I paid.