Social security charges

i have lived in France for 17 years and have filled a tax form in every year. a few days ago I received an e-mail a few days ago telling me there were 'anomalies' in my last 3 years tax declarations. I replied saying that I had a small french pension and the rest of my money was mine and my wife's old-age pensions plus 3 small private pensions. I then received a demand for 2,550 euros for social security contributions over the 3 years. I have a carte vitale and a carte de titreur.
Has this happened to anybody else or is this a scam?
John Powell - @johnpowell23

Hi and Welcome, John,

What country, England?

Are you able to see the sender's Email address?

Social security charges are mandatory contributions employers and employees pay to fund benefits like pensions, healthcare, and disability support. These charges help ensure financial protection and social welfare for the workforce.

Social security charges are mandatory contributions employers and employees pay to fund benefits like pensions, healthcare, and disability support. These charges help ensure financial protection and social welfare for the workforce. - @Zinavo321

So

We are well aware of what SS is. So your point is? The OP is asking whether this is a scam.