Tired of Standard Bank

From Sept 2014 I've been receiving debit orders from my account and I have been complaining but it's still happening. Last month I received a debit order notification of which I reported in Standard Bank Rivonia and spoke to a lady (Thabitha) of which she promised that the matter will be investigated, but nothing happen and no sms was sent to me. Last week I went to Standard Bank Library Garden JHB CBD and they reversed the amount and stop the debit order. This week again the sms notification sent 2 unknown debit orders from my account and I don't know what t do now. I've been with Standard Bank for 15 years and now I think moving to another bank is the best solution.