Vodacom upgrades to ********** in branches and you have to suffer

I'm really disappointed after using this network after almost all my life. I had a phone contract with Vodacom, then my contract was upgraded **********ly when I realised I phoned them right away. And they adviced me to send affidavits so that they can investigate I did, after few days I phoned them as I was worried n they confirmed they credited my account and stopping everything as they confirmed is *****. I was so relieved, then I went to Kempton Park to do my upgrade for 2 lines and quess what 1 line and wen the consultant added the other all of the sudden it I can't, the consultant phone for assistance they said they need to approve it 1st I must wait for 2hours then after those hours it refused again when he called again they say I can't get a contract I'm not paying, Vodacom I'm very clean, I have never even skipped any debts n payed off all of them, I'm left with only one so I asked where do I owe they couldn't say, I'm so disappointed in Vodacom, I went n checked with other providers I'm clean and so my question is, so I'm a being punished for the **********?