A new Citibank service helps affluent Citi clients set up new accounts, including credit cards, in countries where they are moving, traveling or setting up multiple homes. Citi announced the service, called Citigold Global Banking, this week as part of its Citigold personal-banking and wealth-management service. In countries where regulations allow, Citi will open new accounts and cards before accountholders arrive at their new homes. The service also enables instant transfers of funds either online or through ATMs between Citi accounts in 27 countries. Citi will use clients' credit histories from their home countries to help them obtain credit cards that they immediately can use as domestic cards in their new locations.