We're sorry to hear you had difficulty with your door, Romy! Though we do certainly understand you do need to do what you feel is best for you and your dogs, it is crucial to mention that though flap wear over time is normal, it's extremely unusual for a flap to need replacing so quickly. When issues occur, we always recommend reaching out to us as soon as possible; we're always eager to see how we can help, and our doors carry a 1 year warranty. Additionally, it is important to mention that your door can certainly be locked while the panel is in place by using the included lock that came with your panel.
If you did wish to try this door again and had any questions, please reach out to our Customer Care team! Our number is 1-800-732-2677, and our hours are Monday through Friday 8 A.M.- 7 P.M. EST.