Why is my account number missing in the Bangkok Bank app?

Users have reported issues with Bangkok Bank accounts disappearing or being frozen, particularly affecting long-term expats and DTV holders. This situation can occur after app updates or due to inactivity on the account. To resolve the issue, it's advised to visit the bank branch with relevant documentation such as a passport, lease agreement, and TM30 form to verify residency status. Additionally, troubleshooting steps like clearing the browser cache or checking for VPN issues may help access the account online.