The feeder that my human brought is broken and only feeds me at a specific times instead of when I want feeding. My human refuses to get it replaced. How can I replace it with one that works? Can I sue the manufacturer? What about my human?

The feeder that my human brought is broken and only feeds me at a specific times instead of when I want feeding. My human refuses to get it replaced. How can I replace it with one that works? Can I sue the manufacturer? What about my human?