Most dealers probably don't want to mess with broken tools unless your a regular customer. Try sending back directly to Snap on or find someone in the business. I usually give my tools to people who have a dealer.
I had a MAC 3/8" torque wrench I bought in 82 that broke and sent it to MAC. They called and told me it was to old and no longer made they couldn’t do anything for me. They asked if I wanted to buy a new one. I declined and said send it back. They call me back 5 min later and said they lost my torque wrench and were sending out a new replacement .