Cancellations always busy

I did a Quote with Miway and there quote was better then my current Insurance. I accepted and when I phoned my current Insurance they asked me if Miway informed me about the single car excess that will be payable when there is a incident like that. I was not informed of this and I emailed and phoned Miway directly to cancel the insurance policy. No responses on the email+ and the cancellation department never answers. The operator says there is a 72 hours turn around time before someone will call me. This was since Tuesday it now Saturday and still nothing. I have even message on FB message where they told me they will let somebody phone me soon. Still nothing. Then to make mater worse. Agreed date for debit order was the 1st, Miway went and took it on the 26st????