I download almost everyday and the cost of getting data is not too friendly and i have a smart means of saving browsing cost. This method is best applicable for those who want to download heavy files and you may have to sacrifice few minutes of your time
How to get 1gb with 100 on MTN.
FIRSTLY, you need to set your phone alarm to 11:59
once it is 11 49pm, send NT2 to 131
you will get a message from mtn telling you that your subcription to night browsing is successful and once it is activated, proceed to enjoy your 500mb.
once it is 3:49am send another message and another message will be send it to you.
this trick work on 6 out of 10 mtn sim cards.
enjoy and share with friends