Wheel Alignment on 2007 Honda Odyssey

I took my van for an alignment and they are saying that they need to add a kit in order to get teh alignment right. They say that the OEM bolts for the alignment are not long enough to adjust the alignment. I dont beleive this. Can you share your opinion on this please ?

Asked by for the 2007 Honda Odyssey
It's absolutely possible and often has to be done on different brand vehicles.
Here is form the Honda repair manual:

Front Camber Adjustment
The front camber can be adjusted by exchanging one or both of the damper pinch bolts with a smaller diameter adjusting bolt. The difference between the adjusting bolt diameter and the pinch bolt hole diameter allows for a small range of adjustment.

They are telling you the truth.