BSNL Mobile — BSNL deducts money without any information

Address:

Lucknow, Uttar Pradesh

Sir,
BSNL Mobile UPE circle deducts Rs.5/Rs.10/Rs.20/Rs.8 from my Mobile connection nearly everyday, without any intimation or notice, when approached service center, a girl will pick up the phone and blame me for the same, saying that you have activated some ridiculous services.
I haven't replied to any calls nor SMSs yet they deduct the amount. I am totally helpless because no one hears in BSNL.
Nor they are ready to Port my no., giving reasons that the no. which I have been using for past 7 years is registered in some other persons name from other district.
Kindly help.