Try a luggage repair shop. If they have an account with Ohio Travel Bag, they can almost surely fix your case. Be prepared for a long wait. Good luggage repair shops with reasonable prices take up to 3 months.
On the other hand, some instrument repair shops also have an account with Ohio Travel Bag, and their service might be faster, especially if they are a Selmer dealer. Sometimes the local music store is the best place to go, despite the internet.
Yes, you can order directly from Ohio Travel bag, after you pay for the BIG catalog, and make the minimum order - usually not a good idea, financially.