Lack of feedback on ***** Account

I made a query to Vodacom concerning the debit order on my bank account on 2015-03-10 and was told that there is an account that was open on my name. Since I did not open this account I was requested to submit an Affidavit and ID Copy which I have done and on 2014-03-11, I was told that a ***** investigation has been logged with Forensic Department with Ref No. S3-8ZB20-OFQTS. To my surprised, Vodacom Account called me on 2015-04-01 telling me about outstanding payment on the account and they have also went ahead and put a note of 30 days delay on my credit report profile while I expected this account to be closed and be marked as possible ***** as early as 2015-03-11. It is now 3 weeks later after the first report but the suspect is busy using the line and now the balance is over R 2 000. I have send many emails to customer care with no feedback and I have spoken a number of times to Customer Care line, Account and Legal departments and still have no response. All I get is that it has been logged with Forensic and they do not know Forensic response times and they do not have their contact details. This is unacceptable as I continue to have a bad credit record.