Now a days all the mobile operators of Bangladesh, like BanglaLink, Robi, GrammeenPhone, start sending Promotional message every day to their customer. Sometime more then 5 sms in a day!. It's really disturbing issue for me and think for others too!
To Stop the promotional SMS of banglaLink, I just got a message from them. And it is like below
To Stop BanglaLink promotional message Type OFF in your message box and send it to 6121.
So, you can try it out. But don't know how long it will work as for Grameenphone promotional message I have send sms to stop it. Few days, it was fine. After few days, again same issue. Same style, regular promotional ads, promotional offers of various services and products of them.