Account Payment

I paid my Telkom account over this past weekend because I kept receiving texts to pay. Yesterday, they debited that same amount of money from my account. My account balance is now in the negative. I spoke to a customer service rep and she said she can see the credit on my account but I have to provide proof (stamped bank statement and my ID) so that I can wait 7-14 days for this to be disputed?????? Like you guys can clearly see the credit due, just put the money back in my account. Now I must wait for my own money. The rep I spoke to was rude on top of it. Bad customer service. I just want my money back.