adoption of a grand daughter

my husband and i have had co-guardianship of her since she was born and we have claimed her on our taxes every year since her birth we have provided for her 100% . my husband passed away oct 5 2007 .I got a lawyer and adopted her .the adoption was finial may 2008 .i signed up for survior benifits for her and social security says she isnt entitled to anything from him but on social security's webpage it states if i adopted her within 2 years of husbands death she would be entitled to it .i have appealed their decesion 2 times i know she is entitled to monies from him .What is wrong with the social security system????? i will fight this all the way and as long as it takes me!!!!!!!!!!