replacement parts

hi i have been trying to contact moog for replacement parts for my sub for a while now , i am based in the uk .
is their a way to purchase a volume pot ( this one i have crackles and cuts out if altered ) and a set of modulation wheels for my sub 37 ( they have started to breakdown the rubberised surface and become tacky )

if anyone has a contact that would be great , thanks

Contact you countries Moog distributer. They should be able to send you the needed parts.