I am also not really surprised as my experience of DBS IT as a customer is mediocre at best. Trying to apply for a credit card online was a comedy of poor UX. Errors preventing the submission, but not marked, files to upload could have a max of 20 characters in the file name, trying to re-upload failed until you deleted the failed previous upload (not explained), and best of all, their "We value your feedback" webform does not accept "special characters" such as apostrophe. "Your website doesn't work" cannot be submitted because of "doesn't." Really. This was a few months ago.
Oh, did I mention the DBS app takes forever to load? There's other stuff I am trying to forget.
As they're the biggest bank here they can offer some attractive packages, which is why I have put up with it...