BSNL
Deactivate chat messange

My mobile number 9449248090 is receiving a message from No. 55888015 that "Thanks for using our Chat Messenger. Your Service has been renewed for next 30 days. Rs.15 charged." Now I want to deactivate or unsubscribe the said Chat Messenger Service, and my amount is deducting every month since 3 or 4 months. Help me in this regard and get deactivate or unsubscribe the above said service

Company: BSNL
Country: India
State: Karnataka
City: Chickmagalur

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