I have noticed dis too, on d first day i noticed dis i make a call to 180 and then press 0 so i was transferred to mtn agent line and they started playing music to me which lasted for 3hrs 14mins till my battery got emptied. I charged my ba3 again till he got full,so i tried to call them by 1.00am in d midnight so dat it can be fast but unfortunately they sing a song to me which i spent 3hrs 10mins till the phone automatically cut off. I think we nairalander should forward dis stupidity to the National Assembly and NCC to solve the problem.