Citibank Privatkunden Region Duisburg BLZ 30020944 in Duisburg Citibank Privatkunden Zw BLZ 30020944 in Ratingen Citibank Privatkunden Zw BLZ 30020944 in Mettmann Citibank Privatkunden Zw BLZ 30020944 in Neuss Citibank Privatkunden Zw BLZ 30020944 in Essen, Ruhr