Why are we banking with them then???? very upset

I am so disappointed at standard bank their service has been good all along ,last week I went to report that there is a company that is busy taking money from my account and its a **** because I never took any product from them the consultant from enquiry department said there is nothing they can do they can only block them for a moment but it's pointless because they are able to remove the code they will put,i asked the lady if there is no other option maybe then blocking them she said no you can change banks imagine just like that and I've been banking with them ever since and apart from that what about my debits??¿? .This company took money from my account four times they took on the 01/12/2018 with this reference number ZYZOCTL ********** 1201,they went again on the 14/12/2018 with the reference LNDMARK BD ********** 81214,again on the 21/12/2018 with reference LNDMARK BD ********** 81221 they went again on the 31/12/2018 with reference ZYZOCTL ********** 1231.This company I never took nothing from them nothing and my bank can't help me honestly I am disappointed the lady finally said what she can do is to reverse it I said to but it going to reflect bad on my credit score she said again there is nothing they can do,so basically what she is saying our money is not safe with them and its like they don't care whether you stay or you go it's your choice,No it's not on Standard bank needs to treat their clients fairly,they need to increase their standard,now I don't know if I should continue banking with them or I must change as I was advised.What irritate me most is that they are not even recognizing their fault here and they don't value their clients I mean I've been with them for more then 10yrs.I want the standard bank management to call me and explain to me why are they allowing such to happen,i am very upset Standard bank call me on ********** 426.