Car Insurance for 35 days?

I just need car insurance for 35 days. The temp ones don't give that option. So I was thinking of doing a yearly one, pay monthly and then refund.

Quote with hastings:

£63 deposit

£118 for 11 months

If i cancel after 35 days would i have to pay for the full 2 months, plus deposit and cancellation fee(£45)

Or is it deposit+ pro rata for 35 days + cancellation fee?

I tried calling to clarify but couldnt get through to them.

Any help would be appreciated