Noisy BEKO WMA1510?

I was doing my washing as normal when at the beginning of the spin cycle the machine had a loud bang. The spin cycle continued, but was uncharateristically louder than normal and viberating loads. So much so at times I though it was going to take off.

Once the cycle had finished, and I had removed everything I pushed the drum around to find that in a certain location that was a slight grinding and friction. In adition to this it seamed as the drum had dropped back a bit (further inside the machine) than normal.

The noisy only seams to be during the spin cycles, other than that the machine seams to run ok.

Does anyone have any idea's what might be wrong with my machine?