Might be worth looking at Halifax pet insurance.They offered me a policy which was only slightly less comprehensive than M&S but, with a £50 excess, was much,much cheaper at £10.91 per month.Seems surprising as both are underwritten by AXA.I believe the M&S policies went up nearly 100% on August 1st and will reflect that very large jump on renewal.
It will always pay to check around the internet for other quotes on renewal.This obviously applies to house, car, travel etc insurance. Never renew automatically without testing the market.I've also found that sometimes Insurance Brokers can find a better, cheaper policy than some of the direct insurers even with the usual 10% internet discount.
Tonio