bill making not correct tata docomi dies not alert to customer

Location/place: ludhiana(punjab)

Name of company/service: Tata docomo

Respected sir my current bill making erong plz check dis and make a correct bill in this bill wrongly charge net pack without any confirmation tats do.charge me the usage of net charged me prodata basis my net pack activate on 23 jan 2013 50 rs.on 2gb tatado.not me confirmed it will be charged on prodata basis and how much i got using kb .i also send a mail to [email protected] on28jan 2013 10.26pm or 29 jan 2013 06.10 pm to deactivate my internet pack regarding to provided the poor network problem in using the net speed very poor.Now my bill genrate and i m shock to see my bill its making on2081 rs. i also pay my advance psyment150 i know ny bill id making approximate 200or 250 nearest.sir i m not able to pay that amount plz check this and waivour of e wrong amount pkz check this and call me my tata do9569499995 no.urgent thanx with watm regards jatinder i shall be wait ur reply tata do doesnot alert to customer to making a prodata basis bill and the require useges .