********** loan with ABSA in my name

I got a call in January and an sms yesterday reminding me about payments on a loan with Absa. I called Nimble Group and spoke to Heather and explained that I never app**** for a loan with them and never done any business with them ever. She advised that I bring an affidavit to the branch and I did that today. Tumo Lucas Moshata assisted and checked my ID's with my ****en surname and my current surname and the picture on the ID on their system had a different woman. The signature on the application is not mine as I supp**** 3 of mine on the affidavit. He asked that I bring a case# from the police. He couldn't flag my ID or that ********** account so it wont be used. Please assist and advise on which steps to take to avoid being blacklisted for something I don't know.