Budget VAP - Double Debit

I requested for my insurance debit order date to be changed. I did this purely to ensure I don't get a debit order bounce on the date initially provided and to avoid being double debited. In fact, I went as far as asking the lady that assisted me to make the change to ensure that i don't get double debited for both my insurance and my VAP policy. Wouldn't you know it, I was double debited by VAP. I called them to rectify and the explanation was mind blowing. I asked why was I debited on the the 25th of the month as well as the 30th of the same month when i requested my debit order to be taken on the 30th as opposed to the 25th? The agent responds by saying that I was charged for the current month (April) and the following month......I asked but you debited me on the 25th of March then 25th of April and again on the 30th April?v I then just said goodbye, purely because I have been down this road before. Yes, this would be the second time I have terrible service from VAP and now I would like to cancel. I refuse to get such terrible service. Enough!!! I will consider moving insurances if need be but I cannot accept this horrid service for Value Added Products when I get absolutely NO Value. Can I be called promptly to get this sorted.