It should not have any electrical current when you touch it. Are you sure that it's not your carpets? The test is: without moving touch it a second time. If you still get a belt, it's the machine Not static.
If it is comparatively new, I'd take it back to Currys. (Matsui is a DSG own brand.) If not I'd bin it as budget boxes are not worth repairing.
t, August 2007