No feedback on ********** account complaint

I was contacted by a Vodacom consultant in February 2018 that my account is in arrears. I then told the consultant that I do not have any type of contract with Vodacom. A month later I was contacted by a Debt collector's agent from a company under Nimble group where they told me that I have an account in arrears with Vodacom.

This is when I realised that this is serious and may have dreadful consequences for myself. I then contacted Vodacom ***** department beginning of April and sent my ID, affidavit, and 3 sample signatures as they requested on 20 April 2017 to the email address ********** I received a response saying that I will be contacted by a person who will help me. I made phone call follow ups and was told that my account has been assigned to a forensic team. In May and June 2018, I sent emails again to the email address ********** with the same documents and made phone call follow-ups, but still even today, I have not been contacted by anyone from Vodacom. The bad news for me is that the account has negatively affected my credit record as it now appears on my credit record with a “5 months in arrears status” on my FNB App and now I cannot make any kind of credit as I am rejected by credit providers.

I feel HELPLESS at this stage and do not know what to do.