You don't always have to pay hundreds of dollars upfront. Stellar provides legitimate paths to test and use their technology: Stellar Data Recovery
This guide explains how to legitimately use Stellar’s toolkit, what the "free key" sites are actually offering, and the safest ways to get your data back. What is Stellar Toolkit for Data Recovery? stellar toolkit for data recovery activation key free
Reconstructing failed RAID 0, 5, and 6 arrays even when parameters are unknown. You don't always have to pay hundreds of dollars upfront