American Express Company American ExpressAmerican Express Credit Cards Allowed a merchant to submit $7,000 in charges to our cardholder account when services were cancelled New York New York

An advertising campaign was placed with Google using an AMEX card. The campaign was stopped and paused on the date of 3-31-2013. The merchant, Google, continued to bill our credit card for charges related to this advertising campaign after we stopped and paused the campaign. Google is saying we did not pause the campaign until 5-23-2013 even though we have documentation that was printed from Google's server stating that the campaign is paused as of 3-31-2013. There was an additional $7,000 that was billed to our account. I have made numerous disputes and even went all the way to the Office of the President for American Express in New York. The excess charges of $7,000 were reported to AMEX and AMEX established 3 separate disputes. Their system only allows for a maximum of $2,500 per dispute.After more than a year of trying to resolve the matter, AMEX resolved 2 of the 3 disputes in our favor in the amount of $4,500 that was credited back to our account. They did not credit the amount of the third dispute in the amount of $2,500. All transaction charges for the full $7,000 were related to the same over-billing occurrence.We presented documented proof that the campaign was paused on 3-31-2013.

How is it possible that only $4,500 of the $7,000 in non-valid charges are credited? We have submitted documented proof of cancellation and the Credit Card merchant will not remove the final $2,500 even as they have already removed $4,500 for the exact same billing occurrences on behalf of this same merchant.

What is needed to have this credit card merchant to credit the remaining $2,500 that was billed in error to our account?

It is the fiduciary duty of the credit card company to protect the cardholder against such errant and un approved charges.