Vodafone India — change my connection prepaid to postpaid

Address:

New Delhi, Delhi, 110058

Sir

this is dhiraj ray using vodafone from last ten years. i lost my mobile, process to getting new sim company change my connection to prepaid to postpaid 399 /month rental.
all my document like adhar bank school attach to this number.

i can't change my number anyway. this is fraud by company change my number to postpaid.