Ask Social Security Questions and Get Answers ASAP
It is possible that the letter was mailed but there is no way for any one here to verify that for you.
This letter is sometimes called a "budget letter," a "benefits letter," a "proof of income letter," or a "proof of award letter."
Your wife should call again and make the request or she can go online.
Use a "my Social Security online account"
If you have any other questions, please ask me – I’ll be happy to respond. Thank you!