Hi all Mulberry-experts! I've just bought a Bayswater, black crocodile, which the seller of course claims is authentic. It looks authentic to me, but I'm not sure about it. So I could need some help please?

It's made from leather and it's well-sewn. But the serial number has six small feint numbers and I've always thought that the serial number should be more visible? On the other side of the "Made in"-tag there's an X.
I went to the Mulberry stores in my hometown to ask them if the bag is authentic but they refused to even take a look at it (they didn't want to be responsible if they happen to say wrong!). That was really a shame because the seller gave me the return policy for 7 days so I could return it after being to the store and checked the authenticity. Now I've decided to keep it (since it's been more than 7 days), so let's hope it isn't fake...
So now it's up to you instead. Please please help!

Check it out here:
http://abcdabcd.blogg.se/
Some pictures are pretty crappy but I hope you can help me anyway!