Vodacom's incompetence

Why is it that my ***** claim is not resolved. I logged it in Feb and it took me just a walk to one of the stores to find out that this is the case of identity theft. My name, surname and ID no were used but the image on the copy is not mine. Bank name and account no are mine but the address and transactions on the statement are not mine. The ********** account was opened in kzn while I'm based in joburg. Must I now do your job in investigating? Stop harassing me in trying to collect outstanding amounts from me when I wasnt the one who opened the account and simply do your jobs please. Youre messing big time with my credit record.