BAD SERVICE

I have a cheque account with Standard Bank and I stopped an African bank debit order and they charged me R2 for the transaction but the debit order went through and I was charged R680 for that. I called and tried to reverse the debit order and was informed that I can't , I need to contact African bank. Whose cheque account is this? African bank / mine? If I need a go ahead from them regarding my account. My charges for August amount to approximately R1000 including the ones for overdraft which I no longer have. I couldn't even pay my debt care debit order because of all the fees. When I complained to Standard bank again regarding the stopping of the debit order and charges therefore, Praveen Munickum responded and said nothing can be done. Surely the account which I thought was mine belongs to African bank now. I am extremely furious and demand that the charges and debit order be reversed urgently.