Vodafone India — postpaid to prepaid

I wanted to get my postpaid connection switched to prepaid.
When i visited the vodafone store located at wakdewadi, pune, i was told that complete maharastra server is down & they cannot process the request. When asked how much time it will take, they told me 10-15 mins.

Next day, i again visited the store (Wakdewadi, pune) to get my postpaid connection switched to prepaid i was told to send a sms (P2p mobile number) to 199, which i did and got an sms reply saying executive would contact me soon.

But i have still not got any call from any one till now.