Seems like you have enough trouble with the kids you have, without buying another one..I made the seatbelt receiver on my VW T5 Kombi rear seat work again.
Bl**dy messy kids with sweet wrappers and all sorts stuffed down inside .
Had to fully removed it from the seat , push the red button down and fish around with a bent safety pin .
2 bl**dy hours later, I managed to hook a blue bag from salt n shake crisps out that was properly jammed in there ..... success.
The wife reckons I should have just bought a new one.....pffft...