one day car insurance norwich union

If I take a short term auto insurance coverage (28 days) Will I gain 1 years NCB?
I had an accident 6 weeks after renewing my car insurance if I were to get a cover short-term (Norwich Union, etc..) for 2 lots of 28 days (which is renewed after the first 28 days) then I will have 1 years NCB? The only reason I'm asking is because the cost of the renovation last year was £ 450, this year renewal the cheapest I found was £ 1300!
No. You will not get a year of bonus claims, having an insurance policy valid for 12 months without making a claim.