Very bad experience

I have a Capitec account which I was happy with until the 6/02/2023 I was paying my Vodacom account via the Capitec app and the system was busy saying that I exceeded my limit which it was R3000 and I wanted to pay R3000 to my Vodacom account and I've tried it 4/5 times b4 I increase it to R3500 but still got the same massage about the limit after I left it then few minutes later I received SMS that the the money went out twice and I had a balance of R4900.00 in my account and a R3000 limit on my Capitec app so I went to the branch and a incident was logged but I was told 2 take it up with Vodacom but it's there mistake and now I'm going to have a minus on my account of over R1000 and I don't understand how can R6000 go off on a account that has a R3000 limit and R4900 balance so I went 2 the pan plaza branch which a lady by Paballo was helping me and called the headoffice which they also can't give me answers for and I want to understand and get my money back