Vodafone India — Absorbent bill on one day of rs 4237

Address:	Kolkata, West Bengal
Website:	Vodophone

I received sms and mail on 11 th April 2016, for usage of rs 4272, I do not understand why this amount has come, I talk to customer care of vodophone but not proper reply. My normal monthly post paid mobile [protected], since the day I have taken connection at Kolkata was about rs 650. My usage is some time zero. Also they have indicated that they have given credit of rs 5000. I don't know why they have given without my consent. I request vodophone to look into it and with good gesture reverse back this amount. Also, I requested vodophone to convert it into pre paid, but they have not done so far. Again I request vodophone to convert my post paid into prepaid.
Regards
C h prasad rao