High oil consumption in the new car

Moin with each other, I have an Arona with the 1.5 liter petrol. Just then (total running power 11,800 km) the invitation to check the oil level was lit. Said: about 5 mm under the minimum. Call to the car dealer Beroliner in Berlin (seller): We would like to look at it, but Seat says 0.7 l on 1,000 km would be fine. What experience have you made with your vehicles – for me such an oil consumption is actually acceptable, with my 5 predecessors (all previous ones) dings all diesel) from Seat and also from the Opels before I never had to refill between the oil exchange intervals.