I had the same issue this year . The first one I mailed off . Just last week I got another . So I signed it copied it both sides and emailed it to Manilla telling them the issue and saying I was mailing this one as well . We as a group maybe need to contact someone that will listen .....
This was the response I got .
We understand that you have received the reporting form SSA-7162 / SSA-7161. To avoid the suspension of your benefits, please complete the form as soon as possible and mail it back to Wilkes-Barre, PA using the enclosed business reply envelope. We recommend using regular postal mail, as registered mail and some courier services may be unable to deliver to a P.O. box. It is not necessary to send a copy of the form to the Federal Benefits Unit in Manila. To ensure that your benefits continue without interruption, please do not submit the completed form to the Federal Benefits Unit in Manila or to a U.S. Embassy/Consulate.