Avoid Santander Insurance!

i have been with Santander insurance since January 2013 and had no problems until yesterday. In December 2014 we had a leak at the main stock-cock in our airing cupboard. I contacted Santander to inform them of this as i thought i may have to claim for the repairs on my home insurance, there was no claim though as after having a builder out to price the job we decided to pay for the work ourselves to avoid increases in our home insurance in the future. The bill was also lower than the excess we would have had to pay anyway. All was fine and the insurance carried on as usual, taking my monthly installment from my bank as per usual. Until yesterday, when i received a letter from Santander asking me to contact them urgently regarding my insurance. I phoned the number given straight away and was told that they had no details and i should phone the claims dept, which i did, only to be put back to the original lady who had now miraculously found my details! She told me that because i had reported the leak to them i had obviously had a loss at the property and that constituted a claim and although the claim was reported to have cost nothing the insurance underwriter "Integra" had now decided 6 months later that rendered us uninsurable!They had cancelled our insurance and Santander had found us another policy with a different company that was £12 a month more expensive! I struggled to understand what she was telling me as we had cost the insurance company nothing, i had paid my installments on time, and we hadnt made a claim but according to her this is a common occurance? Then she asked me to go through everything with her so she could cancel the policy, which i refused to do as i told her i was too busy as i now needed to find a different insurance company and she had actually told me Integra had already cancelled the policy anyway! Is this just a way they use to get more money out of you? Last laugh was mine though, went on line and found a better policy for a third of the price. The lady i spoke to on the telephone was rude, loud and talked over me when i was trying to question why this had happened. I would never ever use either Santander or Integra ever again