Continuously calling wrong person

I keep on being harassed by calls and messages from Barret & Associates. I have on numerous occasions explained to the call center agent I am not a Sharon and I do not know a Shaon that has outstanding debt on a FNB Loan, but after a week or two the harassing calls and emails continues again.

Stop calling the same people over and over it is extremely irritating and as explained several times I am not and do not know a Sharon.