Why is my line 07030835421 barred after linking my NIN to it?

My line was barred, no message sent,.no notification about this. I have linked my line to my NIN for years now. I also confirmed that it was linked just last week. What's going...

How do I unbarred MTN barred line 08067477857 so so as to link with...

I can't make calls or receive text and still can't link my NIN. 07035805960

My MTN line 08036994205 was barred this morning, I want to unbarred it. Thanks