Lol, That is true.The call centers are pretty much useless, a waste of tax payers money IMHO. As you can see in the spreadsheet, some people from end of July received AOR and the post above, where someone from July 09 already got decision made. I have a hard time believing they are still on July 13.
Just for an example: When My sister was taking her citizenship test, she had friends who applied 6 months before her and were still waiting to take theirs. Sometimes It's just a matter of luck. When dispatching the enveloppes, if yours falls in the hands of a productive agent or even in the most recent pile.