Vodacom cannot explain qualification criteria for new contracts

I currently have a contract with vodacom which Ive had for over 4 years and have never missed a payment. I saw a hot data deal and app**** for it online as a new contract only to get an SMS minutes later that i dont qualify. I called vodacom to find out their qualification criteria and the consultant advised that i need to have 2 active accounts that debit from my bank account which i do. The lady seemed uninterested to assist me and could not answer my question as to why i didnt qualify and just told me i dont even qualify for a decline review. You have lost a loyal customer as my contract is due for an upgrade and im having second thoughts if i want to continue with Vodacom