Consumers of telecom services who are dissatisfied with services rendered to them by any of the Service Providers have a right to seek redress of the situation by reporting to the Nigerian Communications Commission (NCC) after they would have reported to their respective service providers and are still not satisfied with the responses...

1. When dissatisfied with telecom services:
The Consumer should contact the service provider, whose services or product he/she is not satisfied with, to make a complaint and obtain a complaint ticket number...

Continue here: https://www.techawkng.com/2020/11/09/ncc-procedure-for-lodging-consumer-complaints-against-telcos/