Vodafone Idea India — High bill and credit limit 5000/-

Address:

Guwahati Assam

High mobile bill . Often i see a mysterious happening in my hand set . Its dialling to a number Std code 002 some times foreign number .It starts dialing to the unknown numbers of its own. After that some it registers in the call log of the mobile phone, sometimes not ? what to do? this is the number every where ? please help me