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Well ive been with Tesco for years now, but insurance is a complete rip off. I always change my home insurance they put it up every year so i go with different companys every year. Last year i was with Tesco, but this year when i got my renewal it was nearly £100 more, so i rang Halifax for a quote, i saved the £100, but when i rang up Tesco to cancel, they bettered the Halifax quote. I ended up saving £150 all told.
So i learnt a valuable lesson, NEVER EVER accept a renewal, shop around, find better quotes, then go back to your original insurer, you will find they will try and match or better any quotes you have. They are just robbing bastards.
Ive been with Morethan, Tesco, Halifax and Direct Line, ive found them the cheapest. But theres 100s out there, compare the market is a bit of a rip off. Just get quotes online from the companys themselves and then ring them up and play them off with each other, you will save a mint.