I don't know much about the style, but if it was only a few crystals that had fallen off, couldn't you have done it yourself? I would never trust anybody to do a job like that, because usually it ends up worse off, like going to the tailor or the dry-cleaners. You can buy glue and Swarovski crystals from a bead shop, unless of course these LV crystals were very special? Probably an SA did it!