ABSA Harassment

About 2 years ago my cell phone number was mistakenly allocated to Mr. Ngubane personal details. After numerous phone calls and emails sent to their complaints department they said that the problem was resolved. Regardless I started to receive emails and phone calls again about 2 months ago, concerning this Mr. Ngubane credit card and personal loan account being in arrears. I am sick and tired of being harassed by idiots who can't understand that I am not Mr. Ngubane. Even when I give them his correct cell number which I acquired from an ABSA branch, they keep on trying to contact me. I have set my phone to reject ALL unknown numbers now, so FU!!!