1999 Chevrolet Silverado 2500 Hd

Got my registration form to update my tags and I saw the comments at the bottom say this vehicle has a recall.. so I decided to call the dealer to set up a appointment to get it fixed when I called the dealer, they said that they didn’t have the part so they will contact me as soon as possible so I waited almost a week no response at all so I decided to call them back to find out what was going on with the update. they claim that the part is not available anymore because it is a older vehicle so they need to talk to his manager or someone higher at the dealers to find out how they can do this to get my recall fixed so they told me they will call me again as soon as possible Other week pass so I need to call the dealer again because they never did.. once I call them, they say oh yeah, I see that you already call. Let me check and find out what going on with the recall of the seatbelts!! He said you know what let me call you like an hour to found out all the information of it.. I want to say a lesson an hour they said that they couldn’t help me because my vehicle is old and the manufacture. They don’t make those seatbelts no more so they cannot help me at all. So I told him what’s the other step now if I have a recall they said yeah I’m not sure. I mean the only thing I can tell you if you look for a aftermarket seatbelt or something that’s pretty much that’s it they told me. So here I am wondering, what should I do now? Not sure if it’s safe driving my vehicle like that because supposedly they don’t make a no more because my vehicle is old but you will look at my vehicle looks like brand new because I hardly drive my vehicle. It has 125000 miles on it for a 99 Chevy Silverado original paint looks like brand new vehicle..