In a bid to encourage you to upgrade your SIMs to a USIM (4G SIM), MTN has announced a new 4G upgrade offer.
The offer is 4GB + 25% data bonus on all data plans purchased for 3 months for subscribers who just upgraded their SIMs to a USIM, and 25% bonus on all data plans for those that are already on 4G.
However, MTN customers who are already on 4G need to opt-in to get this offer by sending “LTE” to 131.
How To Check Balance
You will need to SMS 2 to 131 or dial *559*63# to check the 4G and 25% data bonus balance.
NOTE: This bonus is only usable on the 4G network.