Renual letter therefore said they had found a "better" insurance company and that it would be roughly £780
Long story cut short.
Got a couple of competitive quotes from using t'internet and basically told A-plan. Insurance company A then near-as-damn-it matched the best like for like quote.
Now this year will be £600. Result.
Lesson for the day - shop around. They DO want your business. They just hope you are too lazy to check whats competitive out there.