Credit Check

I have never been so humiliated in my life. So I so this great Data deal online then I decided since my current contract with another company is coming to an end, why not take up a new one with Vodacom. To my disappointment that excitement was short-lived. 3 days ago I requested an application online which no one responded to, so I took the liberty to call back myself only to be told my application was rejected because I failed a credit check, however the Agent was in a rush to tell me to call TransUnion but could not tell me what exactly is it that was listed under my name. Knowing very well that all my accounts are up to date I called TransUnion and asked for a copy of my credit record. And guess what???...there’s really no listing or a any bad reviews. I would like a logical explanation of what exactly happened as I refuse to believe this was a general human error.