I love everything about Goyard! I use it everyday, a very nice,elegant schlepping bag... may I present my small G family
When I bought my st louis at the sf store a week ago, i specifically asked the SA if i needed to make a decision about the monogramming right there and then or before I had used the bag and he said no. That I could use the bag but that I shouldn't wait too long because of something to do with the paint. SO, I think if your purse is only a month or so old that it shouldn't be an issue. Good luck!!