HELP! Urgent! Serious rear suspension problem

[carrotchomper]

Help!

Drove to work, all was fine. Came out of work, and realised that the car was really, really bouncy on minor bumps. I've managed to nurse it the couple of miles home but it was extremely uncomfortable.

Both arms on the rear suspension seem to be completely "Jacked up" to their highest extent. I can't see any obvious oil leaks there.

I can't think of any particular impacts to have caused this. It went over the speed bumps in the work car park fine. I have had some turf in the boot recently which was heavy, but not excessively so.

What on earth has happened, and how do I fix it? The car is now completely undrivable. I didn't think A8s had ridiculous rear air suspension, I am now seriously worried how much this might cost.