First, It's a Trick, See this
Normally, for a month MTN data plan for 2000 naira you will get 7GB (3.5GB+3.5GB bonus)
With this trick you will get 8GB for the same price on MTN and you will only pay 500 naira weekly as you will be given 2GB (1G+1GB device bonus) for 500 naira a week, so for a month you will get 8GB for a total of 2000 naira.
The 2Gb you gonna get is as a result of the bonus accumulated!!
Normally, it's 1Gb for 500naira, You get a bonus of 1Gb Resulting it into 2gb for 500 naira.
How To Subscribe For MTN 2GB Data Plan For 500naira
You have to be on MTN Pulse, if not dial *406# to migrate to pluse.
Recharge N500 dial *406*2# and you will be given 1GB for 500 naira with a device bonus of 1GB all amounting to 2GB for 500 naira.