There is a simple solution.
Don’t buy gigs like that. If you do buy a gig like that and get a report showing lots of links then you need to actually check the links. Remember though, loads of links from spammy, link filled sites is actually bad for your SEO.
- Check if the link exists
- Check they are indexed by Google by searching for the link
- Check your link is actually present on the page
If the above are all ok then the seller has done their job.
If the seller “guarantees” that you will get on page 1/rankings will improve etc then I wouldn’t order from them. There are so many different factors that affect ranking that they cannot guarantee this. If the assessment of the campaign requires waiting more than 3 days after the completion of the gig then forget about it.
REMEMBER: If they are selling based on results then the results are the gig, not the work. This means that the time frame of the gig needs to INCLUDE the results (at least partially). That type of seller should do this - complete the work in X number of days and then allow X more days for the results to show. However, there are ZERO who actually do that - why? Because they know that the results will not match their promises.
Could it actually be that simple to rank unlimited sites at number 1 by using a program that costs about $30? Obviously not.
These kinds of sellers have been doing this for so long that I pretty much see them as similar to when I get an email from an African prince asking for my bank details.
I did use one some time ago, they were recommended by a friend and it was a top rated seller. He delivered the links and when I checked them they were all from spam sites, didn’t exist or were de-indexed by Google. I complained, he cancelled the order without question (he knew what he was doing), I reported him to CS with lots of evidence and his top rated seller badge was removed.