Incorrect debit order date

I took out a funeral policy on 8 April 2015. On 8 April I cancelled this. My email was only rep**** to on 16th. I was told that the debit order will go off on 1 May as requested and I would then be refunded. Today my bank sent a message that Clientele submitted the debit order today. I emailed and called but the dt order is still put through. On phone guy kept on telling me about Naedo and not really answering me. I dont care if you think you are helping me solidly enforce and that sentence you always respond with. You have no right to debit as you please. We are looking to buy a house. Do u realise the implication? It is the 22nd where must i get money now and i have to carry bank charges for this. Have you noticed how many complaints you have regarding this naedo thing ur using. I was not even informed of the early debit order. I am highly irretated.