@ ccfa488c7dad
I'll assume you efiled, but it any case, it sounds like your return is at least processing, since you say you had received IRS letters. Apparently for some reason it's undergoing manual review.
In another thread you said you have an economic hardship and even possible threat of eviction. Since you are having a financial hardship, you can phone the IRS Taxpayer Advocate Service for assistance. That is one of their missions. They are especially prone to help in a financial hardship circumstance. In your conversation stress your financial hardship and possible threat of eviction (if that's your situation), and also stress the continued delays from the IRS.
At the following IRS website, select your state from the dropdown menu, and it will give you the number of your IRS Taxpayer Advocate. If the Taxpayer Advocate Service can't/won't help you, ask them to transfer you to an IRS agent. A couple of users reported that at least for them, that was a backdoor route to the IRS.
http://www.irs.gov/uac/Contact-a-Local-Taxpayer-Advocate
Also see this article for more info on how the IRS Taxpayer Advocate Service works::
http://www.irs.gov/taxtopics/tc104.html
