Need Help to Rank My Homepage

about two months ago i built an amazon aff site and the homepage has 2,000 words. the main keyword is three words, like best red widget. my inner pages are about specific products. all my inner pages have its own ranking but the homepage doesn't rank at all. i started building links one month ago and bought 20 pbn links and some links from LA (LinkAuthority), but the main keyword has no improvement, not a single increase, still not in top300. i keep my single word keyword density is under 2%, two words keyword under 1.5 and three-words keyword is under 1%. i don't expect my main keyword to rank in top10 within one month but why it doesn't show even in top300? i have 200 links from about 46 unique domains. most of them are from pbn. from keywordrevealer, the main keyword is somewhat high competitve.

anyone has the same situation?

i'm not my site is in the new waiting period or not as my inner pages rank.

can anyone share some thoughs?

Best regards,

Ivan

It's probably tougher competition than what you thought. Have you thoroughly checked your top 10 comp sites?

might have some delay ranking in homepage.
Try to get your inner page link to your home page. OR try to get more links into it.

What is your PBN's quality ? Does your homepage have any spammy backlinks? There are certain things like these matters.Still,wait some more time and check WMT for updates.