Subscribe 100MB data plan and receive another 100MB on MTN

This day, all this telecommunication keeps debating with each other. MTN, GLO, ETISALAT, and AIRTEL impresses their customers for a better service. Recently, MTN start making surfing the net very easy, because if you subscribe for 100MB(phone bundle) they will reward you 100% bonus, meaning you will receive another 100MB extra, valid for a month.

How can I get the data plan?
Recharge #1,000 on your MTN sim, after recharging your phone, text (message) 106 and send it to 131 to subscribe for the 100MB data plan. You will receive a message like this: Yello! You have subscribed to 100MB MTN Mobile Internet plan, you have additional 100MB data free for 30 Days. Dial *559# for Bonus balance. Enjoy!
You are good to go, and start surfing the net.
Does it work for you? Did you have anything similar? Kindly relay your point of view here