RF4's, Figure Skates?

I have had them for 3 months. I skate 3 times a week and they are still giving me blisters. I tried insoles, that worked but not for a 4 hour skate :( i id contatct risport and they where no help aha. Any one got any ideas how i can get them to stop rubbing. I would lke to keep them untill at least xmas, possibly longer. they rub on the insides of my feet.