Get the blue badge on X (for now) by spending just $5 on ads.
To qualify for a complimentary blue badge, you need to run an advertisement on X (formerly Twitter) and spend at least $5. Once the ad is paused, simply wait 1-2 days for X to grant the badge. After receiving it, you can stop the advertisement and still keep the blue badge.
This work when your account not currently subscribed to premium.
Hope this helpful !Note: I say forever because I have try 6 month and the badge not lost. (for now)