Apple phone support doesn't recognize my keypresses
Several times now, on various dates over several months, I've had this experience:
I use Apple's Support iPhone app to request help on some issue. One of the options I'm offered is phone support. I choose this, and am told I'll be called on my phone.
A short time later, I get a call from Apple's support center in Austin, TX. The automated voice asks me to press 1 if I'm ready to speak. I do press 1, but the automated voice then says, "I don't hear anything." I try pressing 1 again. Same results. The automated voice then says it will try back later, and hangs up. When it does call back, the result is exactly the same as the above.
What would the problem be? I use keypresses on my iPhone 7 all the time with various other companies and organizations that I call. Is there a workaround that would enable me to get phone support from Apple? If nothing else, how do I report this to Apple so that someone in a position of fixing it can do so?
iPhone 7