hi, i got my closet for closetdesign as well, i find everything is ok, when i sign up i know they give me chipboard.
but i do some survey , most of imported furniture all use chipboard as well
like kitchen Cul***e, M*D living and even Mud**n
closetdesign give me chose of plywood and melamine board ( chipboard ) after they show me demo, i choose melamine board one.