ALso, the car comes with a handbook detailing the service schedule.
IF a main dealer is not operating to that schedule - change the main dealer. !
And let me clarify, the first place you quoted IS a CRAP quick fit special. !
Dont touch them with a barge pole.
It is a FIAT main dealer and surfing the net they are not the only ones that do these standard / better / best, Bronze / Silver / Gold levels of servicing. Presumably not the case in Portugal.