Get a secured card and you'll be eligible for a Double Cash in no time. A secured card is for people with little to no history, its a credit card where you have to put up some collateral, a deposit account usually equal to the credit limit. Many cards just automatically convert to non-secured card after a while of good account history.

I've heard good things about Discover IT Secured https://www.discover.com/credit-cards/secured/ no fees, has rewards, and it automatically converts to a non secured version quickly.

Oh yeah, Citibank's website absolutely sucks. Very buggy.