never contact me back regarding my paid up account

<p>i called nedbank before i paid up my account to ask them if i pay my account up today when will my details be updated on ITC they said in a week and yet i am still waiting for them to update it my other account is updated in the time frame the gave me y not nedbank and now everytime i call they give me a new number to call when i call that no quess what happen they give me another no and it goes on for the past two months what can i do </p>