Spent some time in understanding this Oct-Dec SMS charges.
04OCT23 - SB MAX A/c opened with MAB of 25K. But, the 3 monthly statements - Oct, Nov n Dec - show the MAB as zero.
I think HDFC systems "classify" their SB accounts only at calendar quarter ends.
So, my SB MAX account shows MAB as ZERO for Oct, Nov n Dec months. Hence, their system charged SMS charges for OCT-DEC qrtr.
From Jan24 onwards, each statement shows the MAB as 25K as applicable to SB Max variant.
While normal SB account variant attracts SMS charges, SB MAX variant does not.
So, hopefully, they shouldn't charge SMS Charges from JAN24 onwards.
Let's wait n see. To know their logic.
Assuming that they have SOME logic.