Unauthorised Debit order deductions

Each month all these deductions go off my bank account - Can Nedbank ensure no debit order from these places gets deducted. This is happening since 2014 - If I didn't sign a debit order - I am not expecting deductions like this. <br> <br> 02-01-15 DIGICASH 182XG IH DBN 150102 -99.00<br> 26-01-15 IKUZI IZ7S317 -99.00<br> 02-02-15 DIGICASH 1GX6V IH DBN 150202 -99.00<br> 25-02-15 IKUZI IZ7S317 -99.00<br> 27-03-15 DIGICASH 1VAB3 TRIADGL 150327 -99.00<br> 27-05-15 DIGICASH 33VJ0 ONECALL 150527 -99.00<br> 26-06-15 ONECALLD2 3FR7A DIGICASH150626 -99.00<br> 27-07-15 ONECALLD2 3VMK1 DIGICASH150727 -99.00<br> 27-08-15 DIGICASH 4AD0X ONECALL 150827 -99.00<br> 28-09-15 ONECALLD2 4WSHP ONE CALL150928 -99.00<br> 26-10-15 UBUQOTHO 58RLJ UBUQOTHO151026 -99.00<br> 27-10-15 ONECALLD2 5A0RX ONE CALL151027 -99.00<br> 13-11-15 LIFE247Y 5FWK5 YM SOLUT151113 -99.00<br> 16-11-15 PRIVICOM ***1 SAGEPAY -99.00<br> 15-12-15 PRIVICOM ***3 SAGEPAY -99.00<br> 15-12-15 QUADRO PSAS*** -399.00<br> 15-01-16 PRIVICOM ***9 SAGEPAY -99.00<br> Total deducted from my account -1983.00<br>