passing the buck

I have app**** for a vodacom cellphone contract with Dion wired, I have been informed by Dion wired that it had been declined by vodacom and i should contact them to find out why. I contacted vodacom and was advised that they have no history of me being declined for a contract and that Dion wired would need to explain why. I contacted Dion wired again and was advised that Vodacom declined me due to a dispute i had with vodacom on a contract hence the decline and that i should contact vodacom to sort this out then they would be able to give me the contract, Vodacom confirmed that the only disput i had was a prepaid dispute for my airtime that disappeared without making a call, Vodacom further explained that this was a prepaid query and should not affect me from taking on a new contract, Vodacom asked me to get back to Dion wired to sort out. As a customer i feel i am treated unfairly by being passed from pillar to post, with no resolution, I need this to be resolved as this a very big inconvenience on my part.