I want to upgrade my sim to 4g lite

Hi Frank, Kindly visit any MTN outlet with your NIN/NIN slip to upgrade your line to 4G. You will receive free 4GB LTE data bonus upon successful upgrade and the bonus is valid for 7 days. The SIM upgrade is free, however, any additional fee (not mandatory) will be credited to your line as airtime. You can also text 4G to 131 to confirm SIM+Device compatibility. Dial *123*7# to locate the nearest MTN outlet.