instabilify.com — Scam
They delivered within a few days, but the followers only lasted for a couple of weeks. Then from 50k, they dropped to 20k and keep dropping.See the Top 10 Worst Complaints in Los Angeles, CA They do not respond to emails, and they do not have a phone number where you can call.
Also, followers are not active users as they claim. Their followers are inactive accounts in East Asia.
Do not waste your time or money with Instabilify. All these other reviews are probably fake.