Oral b consumer service

I bought new Oral B tooth brush in Dischem, after my old one stopped working . But it is faulty, charging indicator doesn't work and battery drains after few usages. Apparently Oral B doesn't work like other companies, they don't replace your faulty toothbrush immediately, they send courier to fetch it from you, evaluate it, and then decide what to do. Even if you just unhappy with product , they don't want to refund you. There is no resolution time, and my email wasn't answered for 2 days (I had to send proof of purchase) no matter it was escalated. And still no sign of any manager to speak to.