I purchased my bag in Paris as well, but took it in to the Goyard boutique in Miami for the repair process - I contacted them first to make sure they would take it because the store is a couple hours from me. They had me come in, fill out a form, confirmed I was the original purchaser (I didn’t have my receipt, they just looked it up) and collected the bag to send to Paris.
Now, communication has not been great and it’s taking a loooong time, but every so often I email Goyard in Miami or submit a reminder via the web site, just to make sure they haven’t lost it or forgotten about me. I generally get a response with an update in a day or two. That’s how I know the bag is still in Paris, that they were waiting on a part needed for repair, and that they have to custom rebuild the handles because the Marquises style is discontinued and they don’t have spares laying around.
I’ve kept my expectations low and I haven’t been charged for anything. I’d assumed they would just scrape off the gooey sealant and reseal the edges, but instead it sounds like they are replacing the entire handle assembly, including the Marquises’ signature wooden stays (just waiting for that tree to reach maturity so they can carve four 2” pieces from it).
I could have just had a local leather repair place reseal the edges and been done with it but a) I haven’t found a place here I’d trust and b) once I took it elsewhere Goyard probably wouldn’t touch it ever again. So I put it in their hands and I will be very curious to see how it comes back. (And when!)