Is "those information" valid, or is it "this information"?
I know information does not have a plural form (syntaxically talking), which leads me to the following problem:
The username and password are missing. I need [this/those] information.
I feel like the right term would be "this", even though we are asking for several details... but I'm not sure at all.
Solution 1:
'This': 'information' is the noun for which 'this' is used as the demonstrative pronoun. Since information- is singular, this - is too, no matter what the information consists of.
Solution 2:
The adjective or article "this" modifies "information," a singular, so "this" is correct. It assumes that the reader knows that "information" is referring to "username and password."
If instead you wish to use "this/those" as pronouns, you might write something like:
The username and password are missing. I need these right away.