seriously? ive never had any issues!!! got a clean MOT and your fine... ask them where int he MOT/road standard book it say's anything about vehical height....
chances are the front beam is on adjusters and dropped spindles... it'll just need adjusting upwards...
jack it up, put 2x axle stands under the front beam, then undo the two bolts that hold a mad stepped clamp arrangement which are the adjuster on the cneter of the frotn beam, onc both nuts are off, and both of the 1 half of the adjusters are off, get you and a amte to just up and down the the wheel hubs, holding on tho the vans gutter rail on the roof, with all your weight on the grease cap/hub centre, the force of you and a mate jumpign up and down on the hubs will push the wheels down, and raise the van, once the adjuster plate is bolted back on, slighter further down the beam....
if its not on adjusters and cut and tunerd let me know it'll need wleded/dropped spindles removed... (id keep the spindles for a better ride....)
cheers
alex.