Your account could be temporarily blocked because of the following 2 reasons:
Here’s a quick step-by-step guide to activate your Citibank account in two minutes
Activating a dormant account is a 2 step process:
Update your KYC by choosing one of the two options below appearing on your screen.
Please use this option only if you have submitted KYC documents in the last six months. If you do not recall or unsure of previous submissions, please use the second option and upload documents to avoid rejection of the request.
For any additional queries, please contact the bank.