Robi 1952 SMS 21 TK 7 Days! To celebrate the 21st February the International Mother Language day 2017, All the Robi Prepaid Customer can activate the 1952 SMS for sending to Any Local Operator Number in Bangladesh. The Offer will be continued until 27th February 2017. If you want to Activate the SMS Offer, Just Read the below condition and Enjoy the offer. Ekushey SMS Pack is an SMS campaign whereby subscribers will get to purchase 1952 any-net SMS at TK 21 (including taxes) for a validity of 7 days. Subscribers need to purchase the pack by dialing *123*1952# and the SMS balance can be checked by dialing *222*12#.