I need my money back

I payed with Capitec card and the transaction went off from my bank account (of which I believe you can never buy anything with Capitec card if you have insufficient fund) but the money was still pending from the bank statement. On the next day, someone deposited some money on my account and I never received the money from bank account yet it was showing on the bank statement as the proof that is was deposited, when I enquire with the Capitec online consultant, I was told that it might happened that the amount that was deposited, settled the pending amount that showed on the bank statement, and according to the bank balance, the transaction for previous payment went through, hence you can never purchase anything without favorable balance from normal Capitec bank account . My query was closed and referred to the bank statement, and I need my money that was deposited to my account. After some few two weeks, I did the same, I bought with my Capitec bank account and the transaction went through, and I checked the bank statement, I noticed that the transaction was still pending on the bank statement , I then deposited the same amount that was deposited the previous time, and the appeared on the bank balance and on the bank statement, and that was the proof that I need some answers regarding my money(R1000) that was deposited on the 24/09/2020