TOYOTA AYGO 2016 rolled and NO AIRBAGS DEPLOYED

Good day

On 9 desember2017 I was in a car accident and rolled and NO AIRBAGS DEPLOYED

I phoned the dealer and he said I must remember a airbag only deploys on a head on collision at a 90 degree angle..... That is very weird as this car rolled and not even the side airbags opened??????

Who can help me get to the truth