Rear Seat Strap for folding down seat broke

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There's a small strap that you pull on the corner of the Tiguan Rear seats to let them fold flat.
One of the straps just broke when I pulled it so I cant fold the seat down again the seat is now stuck in a very upright position.
I cant figure out how to replace this strap or what is connects to despite poking around in the seats and looking at the one that is still OK.

Anyone know how to fold the street without the strap and/or replace the strap ?

Thanks

Tiguan Pacific 2012 TSI 132