Office chair (Burntwood WS7)

Office chair in fair condition. Fabric pilled and slightly coming away from frame at edges in small area (only visible if you look closely). I can't get height adjustment lever to work - may be fixable? Height of seat at present is 51 cms/20" from floor, height to top of back support 107 cms/42". Otherwise quite comfortable to sit on. Just got myself a smaller one so this one is surplus.