Im frustrated with the charges on datapack proration.I changed 180 plan to 300 2g I got charged by 2300 . But when I was changing plan I didnt got any clear information about prorated overage charges. When I asked them why you informed us about that they said we dont tell like this. We got this answer from costumer care officer manikbaug. How will we come to know about that we get charge by changing plans. I want to complaint that I didnt got good service.if I was knowing about prorated tee why I would change