Amex Credit Card Complaint

Amex Credit card department,

Customer service / Customer relations Ohio

I have contacted American Express several times to get my promised promotional apr applied to my account as agreed in the recorded call. After I spend money and charge items to my account, I get a billing statement showing the normal APR. I contacted Amex to see why the promo apr of 0 % for 12 months was not showing as it was effective -/-/15. The customer service rep said there are no such offers and told me I was mistaken. I escalated to a supervisor who told me the same thing. She offered me a rate of 18 % - however I declined and said no. I wanted the promotional offer as accepted. The supervisor changed my apr to 18 % without my consent. I escalated to the next level, who told me she would review the call and call me back in 48hrs. Her name was - in - -, -. She never called me back. I called and had to have someone else put a request in to review the call as she never did it. I made several calls back to Amex. I requested to speak to a US rep multiple times and was denied that request and was transferred back to foreign call centers and even the IVR. After 5 hours of phone calls my issue was halfway resolved. I faxed in a complaint -/-/- and have never heard back. I also called back - additional times to speak to a manager and was denied that request. I was informed I would receive a call back in 24-48hrs. The calls never came. 3 times I was promised a call back and a manager never called. I need to speak to a manager to help me resolve my concerns.