Hello,
I recently switched to Mint Mobile and they gave me a second sim card with a 7 day free trial. If anyone wants it PM me. I only ask that you cover shipping. If you like the service, you can just keep the sim card and start a plan.
I switched from spectrum mobile $45/mo unlimited to Mint $25/mo 12GB, and i got new features like visual voicemail, wifi calling, etc. the service is great.
Note: your phone must be unlocked. Your service provider will do that for you as long as the phone is paid off.