How to block, mark as spam, or unblock phone numbers on Fly devices

Fly Nimbus 17 Fly Nimbus 17
Fly Champ Fly Champ
Fly Power Plus XXL Fly Power Plus XXL
Fly Life Compact Fly Life Compact
Fly Life Mega Fly Life Mega
Fly Power Plus 3 Fly Power Plus 3
Fly Life Compact 4G Fly Life Compact 4G
Fly Photo Pro Fly Photo Pro
Fly Slimline Fly Slimline