Realme — faulty charger of realme xt bought from flipkart order number od[protected]

I have ordered realme xt on 16th sep from flipkart and i have been using it till now. I have got a vooc charger along with it. It had worked for a month porperly and after that it had stopped fast charging recognizing no vooc. I have mailed realme's official email address and still didn't find any assistance. Also my laptop doesn't recognise the cable for data transfer. It only charges it. Its been now almost 6 months and my phone is still in warranty period. I want my charger to be replaced