Airtel — deducting balance on unwanted laila services without my notice

i dont know why airtel has been ruining me by cutting my balance indiscriminately onbthe pretext of laila services without my approval the following are the details of airtel deducting my amount withoutany prior intimation. 1).13-11-14 deducted 15rs at 9.12pm 2).06-11-14 deducted 35rs at 9.14am 3).13-12-14 deducted 15rs at 2.44pm 4) .14-12-14 deducted 35rs at 9.04am. so terribly airtel cutting my balance . i changed from vodafone to airtel.now airtel has taught me nice lesson. iam very much dissapointed over airtel plundering my balance. kindly refund my amount or ill legally proceed. my number [protected]