Here's what they have to say about the promo and on how to activate Globe Super One:
Heya, GLOBE fans! Introducing SUPER ONE. The first & only all-you-can call & text to ONE Globe Postpaid, Prepaid or TM number of your choice.
Connect to your most important ONE for as long as you want for as low as P150/month/mobile number. Tawag na sa iyong sweetheart, anak at best friend!
Text SUPER ONE
We've learned from various sources that Super One is currently offered to post paid and Super Plan subscribers.
Don't lose hope, I got a source who said that Globe will possibly make Super One available to prepaid users soon.