My insurance runs out at the end of this month, but I’m only gonna be needing the car up until around August 10th as I won’t be in the country after that for at least 2 months.. Does anyone know of any cheap short-term insurance companies?

I had a look at Aviva and their short-term (28 days) was £200 more than a whole years’ premium! I’m thinking it may be cheaper to just choose a monthly payment insurance and cancel when I need to – only problem is most seem to want 2 months’ insurance deposit. Are there any companies that don’t charge the 2 months’ deposit?