C5 broken seat mount

[Joncarpet]

It was all going so well with the C5 until the other half sat in the passenger seat and nearly fell out. Backwards!

It looks like (please excuse my technical jargon) something that holds the seat to the seat frame has sheared off. It’s on a curved arm which was protruding out of the front left of the passenger seat.
I could see where it came from, so pushed it back under, but due to the way it has sheared, it doesn’t fit in the little hole that it left.

Does anyone know if i need just a seat mounting frame? Or a new seat?
And any advice on price would be appreciated if possible.

[SaabC5]

Should be able to get one from a breakers especially if its velour and not leather. They don't like breaking leather sets but velour doesn't really sell and more often than not people want a drivers seat cos it takes most wear.