Hi. I’ve not had any problems, but that’s from a sample set of only 1 van.
As your sensors still look intact, I would get VCDS hooked up and do basic settings on the headlight levelling when are at your chosen ride height. You can also check that the sensors are working correctly through their range of movement.
If you can’t do that, I’m pretty sure there’s a manual adjustment for height on the back of the headlight itself. As a temporary measure you could adjust them upwards to see if it helps.
I’m surprised that the fitter of your air suspension didn’t check the headlight aim before handing the vehicle back. You should query the problem with them and ask them to correct it for you.
If you have someone local who can help out with the basic settings calibration, but it still doesn’t help it, any MOT centre can check and adjust headlight beam alignment for you.