Call back – commonly known as “Please Call Me.
Please call me service on MTN network is free. To get started Dial *121*cellphone number#, for example., *121*083 123 4546# then Press the send or call button.
To personalise your CallBack SMS:- Dial *121# to add your name and access other features.
MTN Says “Don’t let a lack of airtime stop you from getting in touch when you need to!”