I first tried to buying backlinks that were supposedly "Lindexed", these never showed up. Next, I tried backlink booster, ya it was only the free trial, but they said 60 backlinks were boosted, none of those showed up either.
Now, I am trying out Linklicious for a month, bought the basic plan, and will test if for a month. Oh ya, and I have done some manually pinging of backlink pages, but that never worked either. I will try and remember to update with my results. In the meantime, anyone else have a"sure-fire", but not too expensive way to get backlinks indexed?