MAS should regard it as an obligation to exchange mutilated notes

I REFER to the article ‘$50 notes with ‘KF’ mark: Defaced bills ‘command no value” (ST, 27 Mar).

While it is right for MAS to exchange mutilated notes for good ones in the event that they are accidentally given to us, I am surprised that MAS regards it as an ‘act of grace’ rather than an obligation.

If an ATM delivers defaced notes to me, a situation clearly beyond my control, and neither the bank nor MAS is willing to recognize the value of those notes, I can and will sue the bank for fraud.

Ng E-Jay