Thank you, B! May i ask which Chanel boutique helped you? Sounds like they did a great job!
vagabag, without knowing anything more about your local NM, here's my advice:
I would take it to Chanel directly.
I bought my flap from NM, and within the first year (actually it was only a couple of months), my flap needed to be repaired. I went to NM to check on the time frame regarding repair, and was told it would depend on whether they can fix it locally or has to send it back to Chanel to fix it.
I then went to the Chanel boutique and they told me it would take 8-12 weeks to fix it. So, instead of having NM decide whether to do it locally or to send it to Chanel to send it out for repairs, I went straight to the source (boutique) and have them ship it out and send it back to the boutique when it's done.
The repair was done beautifully and it came back within a month. The repair specialist said she wanted me to have the purse back ASAP since it had only been a few months since I bought it and I shouldn't have to wait forever to get it back within my first year.
HTH!
P.S.: They did not ask me for a receipt nor the authenticity card, and I didn't include it with my repair.