Hello Steve. This is useful information. My father-in-law has the same problem. One question is your address with SS a US address or an Argentine address? ThanksThe suspension of payments has happened to me several times. This year I was able to resolve the problem without actually missing a single monthly payment.
If you have ave a copy of the original form (preprinted with your name, address and SS number) you can go to a local kiosk that can scan both sides of the form and send each of them (in PDF format) to your WhatsApp.
Then you can send the two pages (front and back) of the completed and signed form to someone in the USA who can print both pages and mail them directly to the SSA. It should not take more than two weeks for all of the delayed payments to be deposited into the designated account.
PS: With the help of my sister in law I have done this successfully three times. The first time I sent photos of the form that I took with my cell phone. I chose to send the pages in PDF because the details of the scans were better.