Debit order error and still no sim card

My debit order went off as normal (2 October as 1st was a Sunday) and I actually went to a Vodashop to buy a sim card for one of my devices that was ******. I was informed that my account was in error. I showed the guy that my debit order did went off and he sent an email to Vodacom to rectify and he phoned as well. 6 hours later, I went to another Vodashop and the same problem occurred. Now this causes me not to be able to get a sim card. After I sent a proof of payment to ********** at 14:00 I still had not received any feedback! my account still shows outstanding? Is Vodacom *****ing from their clients? My account was paid via Debit order 2 days ago? and now I still am not able to get a sim card for a ****** device? I have to take off from work to be able to go to a Vodashop! This is inconvenient! and problem still not solved!