I try to rank on a brandname (with an affiliate website). So I have a page www.url.com/brandname/ about the brand, 1000 words. I rank top 10 on many longtail keywords I don't target specificly like "brandname + related keyword" I don't rank for "brandname" at all with my page. In stead I rank with a small innerpage www.url.com/brandname/model-X/ on nr 51 for "brandname". Above me are rediculous off-topic websites. What's wrong here, any ideas?