American Express phone number blocked by plan? Couldn't call their customer service
I had to call American Express about a charge on my card, and when I tried to call their customer service line I got an automated recording from AT&T saying the phone number was blocked by my "plan". I am assuming this is probably because scammers have spoofed their phone number and people reported it, but I need to call American Express sometimes and this is obviously problematic.
Can someone please explain how to go about getting this unblocked? Also, I tried to get through the automated AT&T phone maze to speak to someone and after 15 minutes of frustration, I could not for the life of me be transferred to any real person. Horrible!