Who called from 3213042838

Received at least a dozen calls from this company offering a free $50 gift card to test water.  They don't seem to take no, nor do they stop calling when told to stop.  Reported number to the do not call registry each time.  Online search of the company name brings up the word "scam" many times.

I have told these people not to call three times this week.

I do not know who told these people that I bought a home.
I am renting.I do not any body to bother me.