Non-existing customer service

I was contacted for short term insurance cover for my car and home insurance to compare to my current insurance provider. I was told that without my express permission that the policy won't activate and I won't be billed (as I wanted to compare with my existing insurance provider) as having short term insurance with two companies is *******.

So the policy was activated and billed and now I want to cancel this policy due to it being more expensive than my current provider and the lack of customer care.

I've been trying to cancel the policy for the last few days but every-time I get put on hold indefinitely or reach an automated mailbox. Unacceptable.