no communication and total inconvenience

i have received unpaid debit orders fees from my bank because African bank tried debiting me twice, the debit orders for the 26th October went through, i was not informed that i will be debited twice, two more debit orders were attempted on the 31st October and there wasn't enough funds for that .i need the fees charged my bank to be paid by African bank because there no communication sent to me in this regard. please urgently refund to total fee of R210 to my FNB aco****