Getting numberous calls from a fake social security office HELP

One option is go to Settings/Phone and turn on Silence Unknown Callers. The only problem with this is all calls from numbers not in your contact list will go to voicemail.

If the number is always the same you can just block that number.

And your carrier may have an app for blocking calls; check their website or call them. There are also apps in the app store that will block numbers that you report; the original (and in my opinion best) is nomorobo, but it isn’t free. The service costs $1.99 a month.