Which bank?

did you write your employment details in the application form?
if yes,...most probably they wanted to confirm your stated details.
or do you already have a BSA with another bank?

btw, read this from BNM

Effective 1 February 2005, all commercial banks and finance companies 1 will offer a basic savings account (BSA) and a basic current account (BCA), with no overdraft facility, to all individual Malaysians and permanent residents.
http://www.bnm.gov.my/index.php?ch=en_pres...&ac=950&lang=en

All Malaysian citizens and permanent residents shall be entitled to one basic savings account (BSA) and/or one BSA based on Islamic principles per DFI.
http://www.bnm.gov.my/index.php?rp=guideli...ic_banking_serv

SCB: Revision of Terms & Conditions of Privilege$aver Campaign

https://www.sc.com/my/important-information...eaver-campaign/

Please take note, effective 11 January 2020, the Terms and Conditions of Privilege$aver Campaign will be revised as
follows: www.sc.com/my/terms-and-conditions

>> https://av.sc.com/my/content/docs/privilege...campaign-tc.pdf

If you have any questions, please speak to our branch personnel, call our 24-hour Client Care Centre at 1300 888 888
(or +603-7711 8888 if you are calling from overseas) or email us at Malaysia.Feedback@sc.com.

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Added on
SCB: Extension of Campaign Period of Privilege$aver Campaign

https://www.sc.com/my/important-information...-privilegeaver/

Please be informed that the Campaign Period for Privilege$aver Campaign will be extended from 31 December 2019
to 10 January 2020. Please refer to the Campaign Terms and Conditions here: http://www.sc.com/my/terms-and-conditions/

>> https://av.sc.com/my/content/docs/privilege...c-extension.pdf

If you have any questions, please speak to our branch personnel, call our 24-hour Client Care Centre at 1300 888 888
(or +603-7711 8888 if you are calling from overseas) or email us at Malaysia.Feedback@sc.com.