You pay 300 on an average on your postpaid bills in india and US customer pay on an average 30-40 dollars a month. Quality of service would be diff!
Company like Airtel and Vodafone cannot do illegitimate Deduction from balance and neither they have any deliberate systems to do so!
As i said its all sporadic errors due to enormous transaction. These errors sometimes go unnoticed during their day to day operations and it is customer who has to bring to their notice.
Notorious Telco would never refund your money if it was scam based deductions. But they generally do if they see false deduction else they put it for probe. These Telco have lot of reputation at stake and cannot let go by doing these notorious activity
I am no way connected to any telecom company!