Bharat Sanchar Nigam [BSNL] — vas services money deduction

Address:

Karimnagar, Andhra Pradesh, 505327

Hi
My mother using a mobile with bsnl sim,
She is uneducated, she don't know the service to use. Bsnl providers activating services and deducting her balance. Recently i came to know that she had a service from so many days and from bsnl they are deducting her balance as she recharges. So how it is justified to deducting balance for the act she don't done.
In this way, they are deducting so many people money who are illiterate.
Stop these type of service to earn money on poor old people