Hi @user70770. We can't guarantee the [device ownership transfer request](https://support.help.ring.com/hc/en-us/articles/360038010351-How-to-Take-Over-or-Change-Ownership-of-a-Ring-Device) will be fulfilled, or fulfilled within a certain timeframe. Our support team handles these requests, and this process can take 15 days or more depending on upon what action is taken by the previous owner. If you're concerned about a short return window, it may be best to return these to the seller you purchased from within that return window.