free cellbooster to replace my 3g microcell

If you replied to the second email that was sent out asking you to click on a link if you still needed a femtocell, that link was broken for a lot of customers so the request never made it back to where it was supposed to go. Inventory for the second promo were quickly depleted so the program was shutdown. If you didn't follow up after your initial call to Support where you were told that you were on a waiting list then you are probably out of luck. There was a huge disconnect within AT&T when it came to ordering via the email and following up with the customers.

All you can do at this point in time is file a complaint with the BBB and have any documentation available if you have it. Those complaints will go straight to Corporate and someone from the Office of the President will contact you. They MAY be able to help. Calling Support at this point in time will be an exercise in futility.

Can you do WiFi-C (WiFi Calling) because that is really preferred over the Cell Booster, especially if you live in an apartment. The new Cell Booster does not offer the ability to allow specific phones to connect so living in an apartment may be problematic if your neighbors have AT&T because they can also connect to the Cell Booster. Your phone also needs to meet the post-3G AT&T cellular requirements. See my AT&T Cell Booster Tech Guide, link is in my sig line.

UPDATE-

After multiple phone calls to AT&T that ended with "sorry that I can't help you" I was finally able to speak with a customer service rep who looked up the notes from all of my contacts with AT&T and then questioned me about all I had done in trying to resolve this issue.  This took about 45 minutes, and multiple messages between him and his supervisor during our conversation.  The final answer arrived at was that although he couldn't send me a free cell booster as advertised in the promotion prior to shutting down 3G service, he could sell me one, and then credit my account for the cost of the unit (That sure sounds like FREE to me) and within a few minutes of answering some more questions, took my credit card information for the sale, credited my account for the amount of the sale, and had a cell booster sent to me by 3 day priority shipping.  The cell booster arrived in 3 days, was registered, activated, and now I have cell service in my apartment again!  Thank you and kudos to Michael for outstanding customer service!!

That is most unusual but I'm glad AT&T finally came thru for you. I'd check my cc account to make sure the credit is there, just in case.