Simkna

So I have had the car for just a week, and have already been clonked on the head three or four times by the boot closing itself. We open the tailgate using the remote. After the boot has been open for about 30 seconds, the boot closes itself again - usually onto our heads as we are bent over getting something out of the boot. I can’t find anywhere this is set? Note, this is out of warranty. I need to get it back to the garage as the tailgate handle doesn’t work, but I don’t know whether this is another fault, or if it’s a setting somewhere I have missed. Si.