MTN subscribers have frowned at the increase in the number of recharge pin codes by 4 digits. Mathematically, it has increased from 12 to 16 digits.
MTN has increased its recharge pin codes from 12 to 16, but subscribers have taken to the social media to express their frustrations.
Most people feel lazy about typing and therefore advocate the numbers be lesser than 12 instead of the resulting increase.
See screenshots of some of their reactions on Facbook: