Been with Sainsburys for 3 years and just had a renewal quote for year 4. The premium has gone up from £293.40 in year 1 to £822.36 in year 4. He's 3 years old. No claims for last two years but one claim at the end of his first year for an infection. Extremely unhappy and going with another insurer. We'll just have to take the hit with pre-existing conditions.