Sakshi — activation problem

Yesterday, i bought an idea new 4g sim with number [protected]. I called on 59059. They asked for the last 4 digits of my identification card and my year of birth. After confirmation they told me that the services would be activated after 15 minutes but till now i am unable to make calls from my new sim. No services has been activated. Let me know the problem and fix it as soon as possible. I shall be highly grateful to you.