Airtel — prepaid international not working

I bought an international roaming pack for the usa for inr 2999 for my prepaid number [protected] which is supposed to give me call, sms and data privileges. However i am unable to make any outgoing calls and my data is not working. This puts me in a nightmarish position while roaming internationally as i can't call a cab or call someone in case of an emergency. There is no proper channel to call a number which i could find on your website and there is no way i can find help using the 'get help' option on the website. Please help asap!