I am a customer of bsnl kerala.My prepaid number is 8547#23.If I face a problem, I cannot contact customer care.There customer number tollfree and 1503 never attended call.I spend a full day for contact executive.I told about my complaint.They activated caller tune without my permission, They deduct my 45 rupees.They are not hear my side, they simply cut my call.I lost my money.I searched in google, I found about Do not disturb service activated.Now they cannot deduct my money.I sent port message also, but no one contact me.Still I am using this sim because I believe their privacy rule.