Its litterally a U shaped piece of metal screwed to the panel that 'catches' into the plastic clip on the table, a cupboard catch from a DIY store will do the job, or contact Frank.....
this is what you need. just have to drill out the 2 rivits and use screws to connect it to the wall. pm me your address and i will send it to you. I dont have the plastic piece that goes on the backside of the table. I think i sent you some parts already but dont remember your name