Fuel Cover cannot be closed properly

Hi,

I just bought a Accord 06. I noticed the fuel door cannot close properly. Normally, I should expect I heard one "bing" sound when closing the fuel door, and the door should close properly. However, I can still push the left side of the door, and the door will open again. I need to push the right side of the door once again after I heard the "bing" sound. it seems the door cannot latch the black "cap" properly. I called the dealer, they said may be the lever does not return to the orignal position. But I am sure the lever returns back to the orignal position, it still have the problem. Does anyone has the similar problem? Is this normal?

06 ?? take it to the dealer ,do not play with it , or they might void the warranty on fixing it for free .