It will have them.
Lift up the rear seat until it is vertical, then push down the tubular legs, which locks the seat in vertical position. Same for both rear seats, you can use them individually or both together.
Under the double seat you should also find a "secret" cubby hole and on the narrow one you should find a knob for hanging your shopping carrier bags.
To lower the seat, just pull out the legs and lower gently until they locate in the floor catch. If you just let go they drop with a bit of a clatter.