Recently, I stumble upon these 2 articles:
Both of the above mentioned articles has 1 common issue which is the shop demanded and accepted payment without intending to supply services.
FYI, it is an offence under S.16 Consumer Protection Act 1999 and if the shop is found guilty, it liable to be fined to as much as RM250,000.
How to make a report for such matter?
Well, actually is quite simple. A consumer can file a complaint online at Tribunal for Consumer Claims Malaysia page by just filling up Form 1 and pay a RM5 fees for the filing (flow chart here).
For more information, you may visit the Consumer Tribunal page.