Same problem here.
My customer never recieved any call.
I lost my 2 sales due to this.
One customer verified over phone but I never got any intimation about the payment ...
God knows how things will work now..
Also, request to AP to upload screenshots and step on how phone validation will work.. Though WOULD LOVE TO OPT-OUT of this Phone validation for my customers.
Its BETTER to pay more than loosing.