Vodacom

I have tried to apply for a contract at Vodacom - my first application was denied at the I-Store - no one could give me a proper explanation. I then did an application online EC-1EMS-2TS5K5. And was told my credit score is not good. No one can tell me why. I am a first-year article clerk (auditor). I earn a good salary, and will soon be a CA earning well. My credit score is good. MTN has approved me, but I want to stay with Vodacom (I currently have a prepaid number). My feeling is that my application was not done properly. As an accountant, I am fully aware of what I can afford and what not - I am not the kind of client that Vodacom want to "miss out" on.