I am using an original **** version of the Citibank "Virtual Account Numbers (** bit...

I am using an original **** version of the Citibank "Virtual Account Numbers (** bit)" application on my laptop, which is running Windows *.*.*I am also using Chrome web browser, Version **.*.****.*** (Official Build) (**-bit).***In Citi's "Virtual Account Numbers (** bit)" application on my laptop, and*as of about a month ago (that we've noticed upon using it), the user can no longer close the Citi virtual card application window by selecting the 'X' in the upper right corner. There is NO means of closing the window other than going into the windows Task Manager to end the task.**As has long been the case (since ****), the font used in the Citi virtual card application to display 'Your Virtual Account Numbers' is so small that even when wearing computer glasses, it is virtually impossible to distinguish the numbers. There is no way to increase the font size or to magnify the text. I am left with simply having to HOPE that I get the numbers correct (which does not always happen). I first complained of this years ago, but it has never been addressed so I will complain of it again, and more LOUDLY, since a posterior aqueous detachment has recently led to my greater reliance on reading glasses.**When one brings up the Citi dialog and chooses to 'View Previous Numbers', then selects the 'View Active Numbers' button, and selects a row containing an UNUSED virtual card number that was generated (but not yet used), a few minutes before, the buttons to 'Use Number' or to 'Close Number' remain grayed out and cannot be used. The number therefore remains extant, but unusable since there is no way to see the CVV number associated with it.**The 'Get Help' link at the top right of the Citi application dialog has an incredibly long delay before any dialog appears, leading the user to re-select it and thus invoking multiple identical subdialogs.**I am logged in on the website (https:**online.citi.com*US*login.do), confirmed by the link option to 'Sign Off' in the upper right corner. I then select the 'Help & FAQs' link from the bottom banner on that webpage. I am taken to the "Need Help?" page (https:**online.citi.com*US*JSO*portal*smartSearch.do), on which my signed-in status is properly reflected by the 'Sign Off' link option displayed in the upper right corner (which I do NOT select). I then select the "Chat or call us" button on that page. This takes me to the 'Contact Us' webpage (https:**online.citi.com*US*ag*contactus), which now appears to have logged me OUT somewhere in the process, or perhaps initiated a new session, because the upper right link option now reads, "Sign On" once more, and the page displays, "Login to Chat with Citi". This cycle continues in an infinite loop ... one never remains signed on and is never able to select the 'Chat' option. NOTE: This sequence repeats regardless of whether I invoke the webpage via the 'Get Help' link within Citi's "Virtual Account Numbers (** bit)" application on my laptop, OR I instead log in directly to the Citibank website from within a web browser.