Oranoco

Sitting at my mums place wih a bit of a problem. Following the fitting instructions and got to undoing the slider retaining 5mm allen bolts. Looks like the bolts don't have a straight 5mm hole as the 5mm bit just won't go into the bolts. I'm now stuck as a piece dropped under the mech and I can't get the bugger back until I get the shifter out

Anybody else had any similar problems?

Got to sit and wait for my bro to get home now to see how we can move forwards or I might be getting a lift home and an earfull off the wife.