When my newer wheeled luggage started snagging while I was trying to zip it, I called the manufacturer and they were of no help.
I decided to try a repair service and after many calls was told by this location that they would at least give it a try.
I took my suitcase in and after giving it a thorough inspection, I was told that they would have to order a zipper and pull, but they should be able to repair it.
It took almost a week to get the pieces in, but once they did, it was just a few days for the repair to happen.
They were reasonably priced and my luggage has made it through several flights with no problems at all.