Keeper

I'm looking for a KEEPER/ catch plate for my sliding glass door system that unfortunately did not include one and the company has been terrible about trying to make it right. So I'm left trying to find one that will work for this type of door.
The door is a United doors and windows Distinct sliding glass door system. I am attaching a photograph of the lock system. It did not come with the catch plate/keeper so I don't know exactly what that is supposed to look like. I suspect based on the photos that were in the installation guide that came with the doors that you may have what I need after looking online, but I'm not quite sure so I'm hoping you can help!