Laguna drain holes??

Hello, I've recently noticed that I have water sloshing around in my rear passenger side door on my Laguna 2 sport tourer. I've removed the plug at the bottom of the food and cleaned it then put it back in, for some reason I'm still getting water inside??
All seals etc look fine!!
Does anyone have any ideas??
I've attached a picture, are these drain holes on the door?? I'm not sure "/

Hope you can help!!

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Laguna drain holes??