Cam belt replacement on 2016 A1 TDI

Hi, just looking to get people's experiences with cam belts/timing belts. I've just had a nightmare with my fuel pump going and Audi said my cam belt is due for replacement. The car is barely 5 years old and has driven 35k miles. Would you change now? there is so much conflicting info out there. Audi Germany say 140k ...
Any advice appreciated. Thanks