Hello @dbs ideal customer,

I appreciate you for reaching out to us here in the Community. I can help you request support for your bank in QuickBooks Online.

Since you're unable to find the option using the instructions above, I can provide you with alternative steps. You'll need to click the Still can't find your bank? option in the Banking section.

Please follow these steps:

1. On the left navigation bar, click Banking.
2. Select Link account or Add account in the upper-right corner.
3. Copy and paste the DBS Corporate Banking link to the search field.
4. Press Still can't find your bank?. 
5. Enter your bank details. 
6. Hit Request.

You can also check this article for more details about bank feeds, like the support format and file size or how to categorise transactions in Quickbooks: Manually upload transactions into QuickBooks Online.

Feel free to hit that Reply button if you have additional questions related to banking. Have a great day ahead.