********** contract under my profile

So I have been contacting MTN for over a week now regarding my suspended network service. Funny part is the Sim card that has been suspended I have had it for over 6 years now, I received one email communication claiming I have a contract with them which is in arreas and that resulted in my service being suspended I requested a call or contract where I agreed to this contract because in the supposed start date or month of contract no MTN agent contacted me and I didn't agree to that contract that I was not even aware of now I have been sending follow up emails requesting this matter to be resolved and to my surprised no response have been received to date. My frustration is that this is affecting my work and MTN is so relaxed making me wonder if they promote ********** use of potential clients details because how they obtained my details was back in May when I was contacted for a phone contacted which was not successful now how did I miraculously qualify for a contract in May that I have no proof or confirmation of?? My issue has been ignored and to date I am with no service due to this and no one seems to be willing to take responsibility for this matter.