OK, just to update this thread. I called the dealer and ended upspeaking with the aftersales manager. He claimed that according to their computer my car did have the Longlife oil. I counter argued that on my invoice it said Total Quartz 5w30 T&D and the Longlife oil used box was not ticked on the service book. He said that the Total Quartz 5w30 is in fact the Longlife oil they use and as per the job sheet the Longlife oil was used. He offered to update my service booke if I call in with it.
If i'm honest I think he may be trying to pull the wool over my eyes - dunno? My car covered less than 1,000 miles last year so i'm not overly worried if it is the lesser quality oil.
Thanks fior your help guys