my base of the Recaro on the drivers side has a dislodged piece of foam

after feeling behind, i can feel the single strip piece of foam is there, but its sagged and formed like it, pushing it back up and it just drops again in the middle
but theres a wire supported flap

which i think goes under this strip of foam and holds it there, anyone have a tip to get it to stay up? and in shape
my passengers looks mint and has the right sort of 90 degree shape to it
but the drivers has sagged, i managed to get it too stay like this but it is misshaped still

any advice would help, cheers