So on Glasgow Cathcart Circle 2N10 Glasgow-Neilston won’t give a medal once I have completed it it only gives me the points not the medal
I wonder if you have saved during the service and loaded it. If so, sometimes no medal will be shown on the finishing menu but it will be there in your service list.
I had this happen on a Hamburg Lübeck service, but the medal was actually shown alongside the completed service in the timetable.