Originally Posted by
NC_Girl
Anyone who considers adding an additional cardholder should be aware that while you can put a limit on them, those limits are useless when international charges are made.
Please elaborate?...
Originally Posted by
makemoretospendmore
I do not believe being a supplementary card holder will get you any credit history.
Did your sister ever give AmEx your SSN? I thought AmEx AUs do affect credit, as long as SSN is given.