Unfortunately, we can't work for free. We're a 2-man team who's spending around 10 hours per day patching our engine and handling customer support.
For this reason, we charge money for every hack we do. Since we cannot guarantee hacking an account before we have tried, we don't ask for payment until the actual hack is complete and we have the login details.
For the anonymity of everyone, we process payments through a third party "unlocking codes" service that allows you to purchase an unlocking code in order to view the login details.

To be fair we have received a lot of publicity in various internet media. However, we've hardly, if ever, mentioned in mainstream media.
The main reason that we're not very well known is the fact that we are a small 2-man team that spends all our time on coding and customer support.
This suits us just fine as we really don't want to become "too" well known as that would bring legal action upon us.
Also, we've yet to see another service that exploits the Graph API like we do. In fact, most Instagram hacking sites are fake. It's hard to convince your customers that you're the real deal when the scene is filled with fraudsters.
We are planning on deploying some resources on marketing in the late 2019. However, that depends on how well we can scale our servers to handle an increased amount of customers.

While we spend hours on improving our engine every day, it is obviously not perfect. On average, we hack 3 out of 4 account requests we receive.
There are certain situations where we either cannot or will not hack an account. Below, we've listed the 3 most common scenarios.

• Ad-spending accounts
  Due to PCI-compliance requirements when managing credit cards, Instagram stores Ad-spending accounts with active credit cards in a separate database.
  For this reason, we're unable to access them through the Graph API and thus we are unable to hack them.
• "Big" accounts
  While we probably could, we do not accounts with a lot of followers. This is mainly due to our legal safety.
  If we start attacking celebrity profiles it won't be long until we're in legal trouble. Therefore, for the safety of everyone, we don't hack popular accounts.
• Pre-April 2012 accounts
  As you may or may not know, Instagram's database is a sequel database which means that it is split up in sequences of data. The first sequence occured on in April 2012.
  Seeing as our engine only matches sequental data, we are not able to extract information from data before that time. Therefore, we're unable to hack any accounts dating pre-April 2012.
  It is, however, worth noting that the vast majority of accounts nowadays are created after April 2012 so this is one of the rarer cases.