MTN be making me waste either one naira, or two naira everyday, and it's not even my fault. I am so annoyed right now. Hello @MTNNG, @MTN180, I have called your attention repeatedly regarding that NIN-SIM linkage message that reads once a call connects and how customers are charged for that voice message; As if that's not annoying enough, you still collect money. Remove that NIN-SIM msg from lines that are already linked, or stop collecting airtime anytime it reads over a call. That small money being collected might not seem much until you add it all together. This is me being nice, fix your network MTN. I am the one begging you people now, the world is my witness.