Seatbelt retaining studs

[verytalldave]

On two of my seatbelts, the small black plastic studs (about the size of a 5p coin) that prevent the chrome fixing buckle from falling to the bottom of the belt have broken off and gone missing. Its only a small point, but its annoying.
Are these available to buy and fit at home?
Advice please.
Thanks in advance.....................

 

[M6AJJ]

Yes, I had the same problem, asked at the dealers, they gave me a couple, no charge as it wasn't worth the paper work.