For future reference. The problem was Giant and S&S having same email. You need different email addresses.
Other learnings - if you ever un-link your S&S/G on FR, the only way to re-link is to call S&S/G and ask them to delete your online a/c. You keep your a/c # so no risk to points. Then go through the process to create new online accounts. I wasted a lot of time on the phone before discovering this.
At some point end of last year I unlinked my S&S from FR and didn't need to call in. After a few days the option to link it showed up on the S&S site again.