Boring towbar question.Help please!

Can you get a shorter necked detachable towball for the 2010 Fabia's? We've had the detachable towbar fitted but the ball seems to sit too high.( Not helped by the car being new and the springs not giving yet) Anyone knows who makes the towbars for Skoda as I may be able to get a different shorter ball with the same fittings from something else.?

I'm looking at getting the trailer altered so the hitch sits higher at the moment,but a lower ball would be a tidier job.