Really unhappy ****** all the way FnB

After so many warnings from people I continued to open a FNB bank account i thought it's not what people make it out to be...I bought something at take alot on the 11th the money went out of ny account then on the 15th money was deposited into my account 12500 but there was only 9400 available the rest was deducted I went to the Bank and they could not explain saying it's charges..then again 3 days later they took my money again and my account was in the minus with R650 then again I went to the bank same thing they keep on saying it's charges.everytime I purchase something they deducted from my current account...and it goes to the reserve apparent but then when the business take the money they take from my current account and the reserve again on Sunday I didn't buy anything as I went no where my account was used and I was in the red with minus 1560 I have money in my savings account now I also can't use that money because it will be gone and the staff really is not willing to assist you at all. They talk to you like you crazy. I saved money to keep me going until payday now when I get my money I will be short of That R1500 and in my reserve it's also in the minus no way I am going back to Capitec people warned me seriously I should have listened even though I have money my kids must be hungry mxm