are you working on high competitive sites?I tried several paid indexing tool, in 2021 none of them worked really.
Wait till they get indexed naturally…
You know, that is actually really profound. If there is a page with a backlink but it's not showing in the index, you get nothing from it.If you need to index backlinks, they're worthless. Simple as that.
1 quality backlink is better than 1000's of spam links.