Orginal looking fake charger(I feel)

I have an asus rog zephyrus g15 which has a 200w charger. That got damaged recently so I bought a new one for 4.3k inr in a nearby asus service centre saying dealership store. The problems I faced in 2 days are -

1. Pin getting Over heat ( the brick is just warm).

2. The power passes through the laptop as well the body feels lil vibrating and u can sense power is passing.

3. The size of the charger brick is 2x the original charger given with the laptop.

4. The guy telling me he will replace and give me another charger (IK that he will be giving a fake one again)

I'm open to suggestions please help me out.

I want to get my money back but they don't seem like giving my money back