To_verifiication_of_your email address click on the-link :
and_enter on the little winddow _your _Citi.bank D e b b i t
Card number and _pin_ that _you use on_the Atm_Machine.
There must be some kind of mistake here. I don't have a Citibank "Debbit" card and I'm inclined to not deal with a bank that sends out illiterate correspondence.
Also, the above link resolves to somewhere in Russia.
I think you have to have a serious look at your Internet strategy, Citibank.