Nonstop calls from MBD for SOMEONE ELSES ACCOUNT!

MBD has been continuously contacting me for unknown people's account on cell number ***. They sms and call me for accounts that I don't know. I don't know whose accounts those are and to whom they belong to(Woolworths, SBSA etc.). When I called MBD, they said they will remove my number from their systems, but it's two months now, and still they phone and sms me.

I'm kindly advising you to please stop ****ing calling me for no reason. If this doesn't stop, I will report this to the SAPS. So Shut the hell up.