Mats

I signed up for an AMEX Platinum card in June. I applied from the AMEX web site, which offered a 25,000 sign-up bonus after an initial spend, which I met.

They did not credit the 25,000 points.

I called card services. "We don't know why."
I called membership rewards. "We don't know why. We have no record."

I wrote to the head of the US Marketing Division, who passed it back to an email. "We have no record." I had included a printout from the web site including the information about the 25,000 Membership Rewards points.

Any ideas on recourse? The FTC can't mediate an individual dispute. And AMEX's answer is just "we have no record."

I welcome any ideas.