I agree, it is totally SNAD. But, if you love the bag, take it to a local leather shoe/luggage repair shop and they will give you an honest opinion about whether it can truly be fixed and at what cost. For ex, I recently purchased a botkier bianca bag that had been a sample and had a decent sized (maybe 1.5 inches) rip across the seam where the pocket met the bag, that extended through to the inside of the bag. The tear extended up the bag so I wasn't sure if it could be fixed. The loving my bags place (?) that came highly recommended wanted $$ to fix it - and so did Botkier. But, my local cobbler fixed it for $15 - good as new.
I know that with the Chanel, it is a little bit more difficult to repair and the leather is probably much nicer than the Botkier. But, if you love the bag, it is worth a shot to take it in and see if they can repair the damage.