PROMO Sangkatutok 15 valid for 2 day ( TNT/Smart)

TNT/Smart PROMO For that one I want  to know for describer TNT/Smart promo Sangkatutok 15  valid for 2 day, I am asking for that registration for TNT/smart load15  may possible 20 min call to TNT/Smart  their more via subscriber registration go to code message under  type TEXT STOK15 to send 4545