Keep getting calls for someone else account.

I keep getting calls from Standard Bank regarding someone else's credit card account.<br> I have asked numerous times to remove my details from the system but every time the call center agent says it will be done I get a call a few week later.<br> I even had a call from a debt collector regarding this issue. They said STDBank forwarded the file to them.<br> I need to know where they got the incorrect details in the first place and how to get it removed from the system.<br> The last call I just received now I asked that I speak to the Team Leader of the agent. The line was very bad so I could not hear everything. The more I asked where they got the details the more aggressive the lady got. She then said they will remove it from their system but it will remain on the original file. So I asked her to remove it from the original file and she said she can not. Then she said I have further issues I need to phone head office and dropped the call. I have tried HO and STDBank legal department and nothing has been done regarding this issue. I need to get this resolved ASAP.