Problem in STD connection

Location/place: Mumbai

Name of company/service: Reliance communications Ltd.

I am a customer of Reliance broadband services(Fixed Landline)
for more than 5 yrs.now.My phone no is 022-30482971 under the Plan Name WCP700.
Under this plan Reliance to Reliance calls(to mobiles or landlines) all over India and calls worth Rs