RBC Insurance Home Insurance Reviews

last year my RBC home insurance premium was 615.00 this year on renewal (Oct 2013) surprised to find out the premium had gone up to 1080.00. No changes or claims year over year. My insurance document had a replacement cost on my 22x24 ft detached uninsulated, non- heated garage has valued at 80,000. and my small 4 level split in Regina Sk had gone to replacement of 400,000.
Called RBC on 2 different occasions and the rep on the phone advised a new replacement calculator was in effect and there was nothing they could for me- end of story.
I called a local broker and got a more reasonable replacement cost and cancelled my RBC insurance-beware of RBC Insurance.