CoSE doesn’t allow this unless outside means Proton Parts Centre...

Doing this (buy aftermarket brakepads) and installing it on to your car shall also void all your warranty related to your wheels...

The fact that the service record about your brakepad replacement job in their system is non existent after been found out otherwise during periodical inspection means they will not covered it anymore.

Doesnt matter if the pad is original from PPC, the main point is "unauthorized service job".

RM360 sounds reasonable.

What's your millage?

One of the reason i opt for proton is because of the esc 😁 did you check for damages?

I still have my car. I will assume that the HHA glitched out. No solution other than what i said.
Few factors may play a role in this.
1) number of people in the car.
2) using lower pressure in tyres(SC's probably use quite high pressure so they dont have to repump the tyres often). High pressure = lower rolling resistant = faster acceleration.
3) Could SC be using diff spec for test drive? eg: At SC u drive 1.6 but u bought a 1.3 currently(forgive me as idk what model ur driving).
He said car only 10k mileage so point 1,2,3,4 are not valid. 5 only if got faulty spark plug and that will make the car quite powerless from what i understand.
Not sure whats causing the sudden power loss and dont think it relates to brake switch as from what I understand thats only used during engine start. Only time i know when sudden power loss is someone who used aftermarket ECU. ECU had problems communicating with TCU resulting in the CVT's clutch disengaging hence rpm go up car doesnt accelerate.