the fake cousin

Two days ago, they called me around 6 in the evening and at first said hello cousin. I asked who they were, and they started saying, "Come on cousin, how can you not recognize me? I'm your cousin, the son of your mom's sister. How many times have we visited you in Lima?" I told them I didn't know which cousin they were and hung up. I blocked them and checked that they are reported. Be careful.