Tuning-Tec headlight LPSE28 – height adjustment not possible?

Hello, I got the Tuning-Tec LPSE28 headlights for my Seat Ibiza 6L. The installation was absolutely problem-free, everything fits plug & play. I really like the look, especially the LED daytime running light does something neat. However, I have a problem with the height adjustment of the headlights. There is only one adjustment screw, with which I can change the side adjustment (left/right). I can not find a second adjustment screw for the height. d of you the same headlights and can tell me how I can mechanically adjust the height of the light? Would be great if someone had a solution!