Vodacom/Rewards passing the buck

I received a call in June for an addition to my contract. I accepted the offer and then never heard from them again. Yesterday I went into a store and tried to add a portable Wi-Fi onto my contract. This was declined due to the previous transaction in June being declined due to a credit decline. The lady told me to phone Vodacom direct as she could not help. I phoned Vodacom direct this morning who then told me it was a decline due to too many lines and not the credit? He then changed his mind to tell me it is credit and I need to phone the "rewards" company that they work through as they will have to clear it. The lady at rewards says this company doesn't do the credit listing - Vodacom does it? I then call Vodacom again - basically same story so I phone ITC - there is absolutely no listing on my name???!!!!! I call Vodacom again to explain the entire story again - same story I have to phone rewards - now a different number to before? Vodacom confirms that I need to request a "declined review" from rewards. I call rewards who again confirms that they don't do the credit check and decline Vodacom does it. They cannot give me a decline review. Rewards also confirms that my decline was due to too many lines (I have one?) . Every single person that I spoke to keeps referring me back to the other company. Unfortunately I have a job and I cannot spend the whole day on the phone between two companies that have some kind of working relationship but clearly do not know who does what. Please could someone clear this up and remove the listing or what ever the reason is . This is the first contract I have ever had with Vodacom and it has been a nightmare!!