BSNL Kolkata — stop advertise sms

Address:

West Bengal

dear sir/madam
with due respect i want draw your kind attention that i belong to BSNL mobile connection.
hence, with out my permission bsnl has allowed several companies to advertise about themselves through sms.
now i request you to stop the said activity of bsnl other than service massage.
hope & look forward for your kind co-operation

thanking you
yours faithfully,
bhabotosh chakraborty
[protected].