Debit order nightmare

I had a debit order go through in advance , without sufficient money in my account, it costed me to be be penalised with an x amount in 2 accounts .bank costs petrol to and from the branch .and they get a a theatening arrogant consultant to phone me to make a new debit order due to they cant see my debut order derails nor my account number.the day after i paid my debit order the did another debit order. They ignore my emails .and share my details to 3rd companys whos phoning me 10 times a day for different stuff .they even added more than R4000 to my loan account which i am extra in debt ,this is so unacceptable .