Vodafone India — migration from postpaid to prepaid

Address:

149, Ramsmriti, Nageshwar Society, Sahakar nagar no.1, Pune, Maharashtra, 411009

I have applied for migration of one of my postpaid connection to prepaid.
Nothing happened since 8 days. I submitted required documents to near vodafone store 4 days back. Different answers from call centers.

1. Mesage p2p to xxxxx, you will get the call within 48 hrs.- why 48 hrs.
2. Submitted document - your prepaid connection will be activated 48 hrs.-ok
3. Call to call center on 13th may - sir, there is a technical problem hence connection will be activated by 48 hrs or earlier.

We are living in 21st century, why 8 bloody 8 days required for migration. Seems vodafone having lack of advance technology.