This is a known issue of Sportage 3. The disadvantage was present in the previous generation of Sportage and, unfortunately, has not been eliminated. To keep the plating, you have to draw a cover and use the hammer to bend the metal plate inside. You don't have to take a picture. In the same way, the problem is solved by the service provider. You can also dig a few drops of superglue.
The problem concerns not just the driver's seat. As a rule, after a while, the same thing happens to the passenger seat.