This is not on!!

Yesterday was the 27th of the month. My debit order was taken last night. Tomorrow only, is the last day of the month. My arrangement with Virseker is the last day of the month. Taking my money on the 27th is not according to my agreement with Virseker and I am really unhappy about the current situation. I need my debit order cancelled. I will take this up with the consumer board too as a consumer may not be forced to sign a debit order, even though companies still do it.