Originally Posted by
LN-MOW
Same here .. tried using the cert but the number was invalid ... turned out I can't use it anyway on a base fare of under 150, but anyway ..

Once you get a valid cert you can usually get Web Support to apply a cert greater than base value -- but no residual value. They applied a $150 on a $148 base. This was an UA cert and may not work for a Chase cert but worth a try.