MTN imei changing tweak has been on for a while now...
Finally you can get upto 8gb free by just tweaking your phones imei no.Dont know how to change your Imei? Read this
The imei we are gonna be using is New Infinix Imei 35842906074
First Add any 3 digits of your choice to it, to make it 14
Then use any imei analyser of your choice to get the last digit.
you can use either http://www.iwebtools.ga/imeicheck/
Then change your phones Imei to it.
Finally, Send INFINIX
You will be given free 2015MB...
Note: You can keep on trying the same procedures with different imei's to get more Gigs