Unauthorized DBS Debit Orders for Months

I WANT TO FIND OUT ABOUT THESE ******* CHARGES ON MY ACCOUNT IN QUESTION.... ACCORDING TO YOUR AGENTS!!! THE SYSTEM CHARGED ME "INSUFFICIENT FUNDS PENALTY FEE" IN ERROR !!! BECAUSE I HAD FUNDS IN MY ACCOUNT .... !!! ON THESE DATES: ( I WANT TO DISPUTE THESE CHARGES) !!!! I BELIEVE THAT I WAS CHARGED IN ERROR!! - **/**/**** BDS STANDA * ********** INS FUNDS -*.** - **/**/**** BDS ABSA * ********** INS FUNDS -*.** - **/**/**** BDS ABSA * ********** INS FUNDS -*.** - **/**/**** BDS ABSA * ********** INS FUNDS -*.** - **/**/**** BDS ABSA * ********** INS FUNDS -*.** - **/**/**** BDS ABSA * ********** INS FUNDS -*.** - **/**/**** BDS ABSA * ********** INS FUNDS -*.** - **/**/**** BDS ABSA * ********** INS FUNDS -*.** - **/**/**** BDS ABSA * ********** INS FUNDS -*.*