The management will usually return the difference if one argues with them. But the point is, one has to bring the item and receipt back to the outlet.

I can understand that errors sometimes happen, but apparently, this is quite common with the other outlets under this company.

I made an informal survey among friends and relatives. Most of them confirm to have suffered a similar experience. None of them had come across a case where the buyer was charged a lower price at checkout.

The Ministry of Domestic Trade and Consumer Affairs should have a toll-free line or an email address for consumers to complain about such matters so that action can be taken against them.