Have been with diamond for 4 years then had a home invasion and both cars AUDI A5 & AUDI A1 stolen so made a claim. Very good regarding the claim but afterwards was when the problems started. The insurance for the one replacement car (Toyota CHR) less powerful, less expensive and less appealing to theives was double what we were paying for 2 cars! I accepted this as a consequence of making a claim. This year at renewal and an extra year of no claims price went up by 40% from £770 to £1200. Spoke to customer services who told me the extra year of NCB meant only a small INCREASE of £18.00??? and the rest was 'other factors' they could not tell me what these other factors were! Went to LV who gave better coverage and a £700 saving. What a ridiculous way to treat customers. Be aware there is NO REWARD FOR LOYALTY in the insurance business.