Thats atrocious!
It's only been 18 months. I've not seen cracking like that on older LV bags, let alone new ones like yours. Just goes to show that LV manufacturing and quality is going downhill. All they seem to care about is $$$. The CEO of the company is the 2nd or 3rd richest man in the world, and his entire fortune comes from LV.
I would demand they fix it for free.
What happened the last time you had to have a item repaired? I think they think that they can get away with treating customers like crap because people still buy their products even with large increases. They have no motivation to provide quality products and good service when there is such high demand.
You're giving me the confidence to go to the store and see about getting it fixed

. I hate confrontation and dealing with these types of things, but I also hate spending $2K on a bag for this to happen so quickly. You are so right about the quality, and I am part of the high demand issue HAHA.
Last repair was for a DE pocket organizer. Similar issue on the glazing on the back pocket. That was happening within the first few months of use (minimal use - not daily) as well. After waiting a few months (took longer than the normal 6-8 weeks because it was during COVID times) for the glazing to all be replaced, I went and picked it up (they wouldn't ship it to me, so I had to drive to the store to pick it up). I made the mistake of not looking over the item well enough while in store, and when I got home and was looking at it in more detail, I realized that they didn't replace the glazing on the back pocket, just around the sides, which isn't what I took it in for repair for. I should've taken it right back, but because of the drive, having to wait in line to get into the store, the hassle, etc., I just gave up on it. I also wasn't having any luck with getting someone on the phone.
Makes me sad, but I guess I haven't had a good history with DE pieces. I totally don't mind wear and tear, either. I have another pocket organizer in Damier Graphite that I've had for 5-6 years, and it has some wear, but that doesn't bother me because I've used it so much, and the wear is what I would consider to be "normal" for the amount I've used it. My DE pocket organizer had more wear and tear after on and off use for 3 months than the Graphite one had with daily, consistent use for 3+ years. I also have a monogram toiletry 25 in monogram that I have used a ton and haven't babied, and besides the patina on the vachetta, looks brand new.