its not always the person serving you, they are just reading out a parts book or there computer system!
even @ my own work they suggest different parts for 1.6 sporting & the td punto...
but they know mine is a gt...
even ordering rear brakes for my girls 172 cup, they were like are you sure they did one...we have down that they dont have clipers @ the back...blah blah blah!
good luck finding parts!