I've only had my Dior Cannage Drawstring for a few months, had it out maybe a dozen or so times and been very careful with it, storing it in the dustbag when not in use. This morning I noticed the stitching is coming apart. I'm always reading on these forums about how great designer bags are, how the workmanship, stitching etc is second to none. I'm more than a bit peeved. Will the whole bag unravel, it's covered in stitches Has anyone else had problems with this bag?