In what way(s) can a cardholder contact the Amex travel agent, concierge, and travel insurance make-things-happen-ers?

I read upthread about "call them" but is telephone the only method that works? I am deaf and not going to spend $699 and have to get an innocent bystander to sit on the line and make calls for me, even for 60K points. I got a targeted mailing / code, but I've shredded them before and would shred again.

I would need to get prompt reply via email or text message with a response time comparable to telephone. Anyone used one of those media with satisfactory results?