You may want to read this article on Annuity Scams as well as contact the article's author, Alanna Ritchie (firstname.lastname@example.org) to get a better understanding of exactly what happened. In fact, the more journalists you contact the better the odds you'll gain sufficient leverage to get USAA to do the right thing so they can put an end to continued negative publicity from the (apparent) mishandling of your case.
This is much cheaper than (and can lead to a faster resolution to) your problems than hiring attorney. I'm not a lawyer (and definitely not giving legal advice, just my thoughts on another potentially more effective angle for you to explore) so getting initial consultations with at least two or more is probably also a good idea.
I possess over two decades in the financial services industry and can tell you renaming your annuity is the least of the problems going on here. It is curious to me how or why an annuity would be renamed a "settlement," however. Insurance company's selling financial instruments (annuities, mortgages, etc.) to one another is *not* unusual. In fact, it happens all the time. USAA is a marketing machine targeting a niche market (current and former military personnel and families), but no rocket surgeons when it comes to managing or investing money. This is precisely why they hire sub-advisors to do the work or sell the product off entirely to some other company.
The make a "commission" off selling you the product someone else "manufactures." Good for them, not-so-good for members.
Ultiumately, USAA is hurting it's brand name, reputation, and profitability. Poor management, outsourcing customer service to companies with poorly trained employees at companies you've never heard of (you're increasingly unlikely to speak with real USAA employees these days) and increasing indifference to members needs eroding everything people used to LOVE about USAA.
jga at Gmail dot com