ahhh that is fantastic news. I was very hopeful that something could be done without the cleaning process, as the GST is a very very hardy bag.
Keep an eye on it, and maybe just go over the cracks again with a cotton bud and some more of the lotion if you notice anything more.
So happy for you that it has worked out. I wouldnt bother with the restaurant manager personally, although I certainly would not take my chanel there again
its just not worth the hastle and thanks to the great SA, why bother putting it through an unnecessary cleaning process which could harden the leather for no reason? I would put in a call tho, saying its been fixed but that you expect the waiting staff to be more careful AND more apologetic than they were to you