Out Goings calls are barred from last 7 days

Location/place: DELHI MEET NAGAR

Name of company/service: VODAFONE

Sir i am deepak arora from meet nagar delhi 110094 my contact no. is 9810394654
i port my number airtel prepaid to vodafone postpaid from 16 jan 2013 but after 1 week my outgoings calls are bareed without any information . i suffered last 7 days i called up customer care many times but they are not giving any response
please kindly heared my problem
your faithfully
deepak arora
add- c-117 street no. 5 meet nagar
delhi-110094
contact no-9810394654