MFC NAEDO wrongful debit

I have an account with MFC for two years now. Never missed a payment. January and February this year they debit my account earler than the allocated debit order date, which is the 26th day of each month. I chose this day as its the day that my salary reflects in my account. Both January and February debits went unpaid incurring me costs and a negative credit reflection. They say they use a system called NAEDO to track my account and as soon as money is deposited into my account, they debit my account. The intersting thing about this is that there was NO money deposited into my account on 24th. Secondly, they could not protect client info, and recently compromised client info, but what to scan my bank account which is held by another bank. I did not give MFC consent to do this and feel my rights to privacy have been flouted by MFC. How much longer will corporates be allowed to bully us? Yes, this is bullying