Quick blurb! Was making a banking transaction when I was prompted to input NRIC via IVR. Keyed in an incorrect NRIC number and to my surprise, I was informed immediately to rekey! What a good way to test for valid DBS bank accounts (since the NRIC is linked to your bank accounts)!
*There’s likely to be some analytics run on the background to temporary block phone numbers. I have not tried. I will not be held responsible for anyone testing this out.