They take money from my account

The worst bank ever, I reported that I bought a voucher online of R300 which was only refunded on the 30th, 10 days later, it was their fault, why I had to wait for 10 days to have my money I dont know. This morning they just took my money again, it says adjustment correction, and when I call they say I was credited twice which the consultants say they also can not see that. I have been on phone the whole morning each call lasting nothing more than 40 minutes just to recitify this and I end up cutting cause no one is on the other end. Its my money, I dont owe capitec why are they taking money from me. why am I struggling to get my money back? I need to use it today? is our monies safe? Just cause its R300 does not mean its little for me, I need to use it, its mine,