Duplicate post.

Edited March 1, 201610 yr by Stoker58

I had to change my SIM at one point 3 years back.

Walked into KBank branch, filled out the paperwork, two days later online OTP SMS working just fine.

Perhaps you are talking about receiving the OTP SMS while doing a transaction using K Cyber Banking.

I was talking about the OTP SMS for using the K-Debit Card for online payments in the Verified by Visa (I believe) -or the last screen anyway - , that I had to change at the ATM, although my new number had been updated previously in the branch.

Cannot confirm, since I had already changed my phone number by the time I got my K-Debit card. So the number used for that was either obtained from my already corrected number on file, or from the application I filled out to get the K-Debit card.