Updated guys, thanks for giving me advice:

I got it repaired today at a repair shop, in Lowyat. Level 4, I dont remember the name hehe. Cost me RM350 today.

But this is the journey:

1. I go to LVL 4 Acer Service Centre, they do for this kind of repairs. But the man said it will take 1 week. With an inspection charge of RM68. They will see first before doing anything.

2. For me I dont want to leave my Laptop there, and go to ask other shop. 1 cannot quote price, and another one yang quoted RM350 and they promise within one hour.

3. I left my Laptop one hour at the repair shop. Checked my things after done repair and okay then I pay. They give me a new charger for my laptop. I got a month warranty.

Apparently they said my model one selalu kena rosak since they also repair that model alot. And I ask what to do to prevent, and they said my luck la if kena lagi and dont use my extension with to many things. Use power source for the laptop alone.
So now I am scared to use my laptop without protection as advised by others earlier.

For me okay lah, not so much as RM500 i said earlier, as I already save money and get quoted RM350. But maybe can get cheaper, I am not sure but grateful to get my laptop again today.