Greedy Bank

I am so sick of you debiting my account whenever you feel like it. My debit order date is the 26th of each month. Please stop debiting before the date. Today is the 25th, why did you debit my account? What if there was no money? JUST STOP IT. STOP BEING GREEDY. I have never missed any payment, so why do you feel the need to debit my account on days that we have not agreed upon?