Unsatisfactoryand unacceptable Repairs

On Tuesday Morning my Jeep Cherokee Ltd. went in for the replacement of the seal between the gearbox and engine due to a leak. The vehicle was returned late Tuesday night with the complete vehicle smelling of oil in the interior. Wednesday morning the vehicle was returned for cleaning. Wednesday afternoon we were travelling when the \serv./4WD"light came on and stayed on. The selection switch for the \""N"