I'm hopeful about this.
But, I do believe that the Pin Discounts are also three-letter codes too. Could someone that has reserved using a pin look at their reservation confirmation and see if there is a three-letter code listed on it?
I booked this morning with the pin code and no it wasn't any letters it was a very long series of numbers.
I am pretty sure it is only available by phone or through a TA. The pin code that came through email was TA or over the phone. But I am not sure about public codes.
Thanks for the response
anybody else wearing out the refresh button