If you are still working or worked last year you could have increased the amount of benefit you are due. Twice a year SS runs the numbers on your most recent earnings and adjust backwards. It may be a small increase in your monthly payment that they owe you for 6 to 10 months ago
If that is it you should receive a letter in the next day to a week from now. Often the money comes several days ahead of the letter.
I’d wait and see before spending two hours on the phone waiting to talk to someone at SS just to confirm that.
If it isn’t work related then IDK
(Former SSA worker)
Sounds like that’s what it is. Thank you!!!!!!