@allfixelectrical,

It is frustrating for you, I understand.

What davewil and lyndal conveyed, I expect, is that even though it is frustrating, the culprit for a phone problem isn't eBay itself (even though there are lots of things for which we can legitimately blame them), but rather it is the phone provider at fault.

So... you cannot really call this a "broken eBay feature".

Rather than try to phone eBay, eBay's "Have us call you" option is by far the best way to get in touch with eBay. (Emails are useless, for a number of reasons, but primarily because the responses, when they are finally sent, are bot-generated.)

eBay say: We'll call you at the phone number registered to your account, or you can enter a different number.

We’re available from 8am to 10pm AET, 7 days a week.