Having the same issues. Got to the apple store at 730am yesterday, waited til 330pm to get in. Got the IRU error, called and removed the FAN removed right away. Within minutes the FAN # didn't show up on my online account. Tried to go through the process a few times for 2 hours, and no luck. Finally the apple rep called some private ATT line and the person said they will take care of everything in a few hours. When back at 9pm, and it failed again. Called ATT again and they said they would submit the request again, but nothing can be done now since it's automatically done.
Woke up this morning, called and ATT said it has no clue where it is in the process. Called at 2pm and got the same thing.
The only difference since removing fan is, when I call 611 I am now directed to a normal ATT line. Yesterday I was directed to a small business line. I asked an ATT rep about that yesterday and she said, they were probably just directing some calls to the business lines as overflow. The rep at 2pm said they could have fixed my line, but not called me. She said she has no clue what the status is. And by fixed she said "fix the problem that's not allowing me to buy the phone at Apple". They really are being pretty vague.
Luckily the nice apple reps have a phone and accessories on hold for me, but say I should wait for a call from ATT first before I come back in. Any advice would be great. And keep sharing your stories.