Tata Docomo — Wrong billing of last postpaid bill

Address:

Kolkata, West Bengal

I was use [protected], 199/- postpaid plan of TATA DOCOMO. Due to some inconvenience and harassment from TATA DOCOMO I changed my postpaid connection to prepaid which was I used previously. My postpaid connection converted to prepaid on 30th May 2015 and I received a message that 15th June my final bill will be generate. My billing period of the month from 25th. My prepaid connection started from 30th June. Therefore, I used postpaid connection only 5days for this month. But I got my final bill on today 29th June. They send me full month bill. But I have no problem with that. The issue is that, they send me the bill of Rs 638/-. As per my plan I have 100 MB free data. As per the bill I have used only 52.08 MB. But they charged for it Rs 533. No 100 MB data free mentioned in this bill which was mentioned in the previous bill. I called customer care for help but they didnot help me, they told me that they will not able to help because my number changed to prepaid. Then I go to the nearest Tata Docomo centre and told them the matter. But they listen and agree with me for this wrong billing. But they told me its not in their hand. I have to pay this rupees or tell the matter to customer care. But I have told customer care this matter. I cant understand why they harassed me everytime. I have used Tata Docomo from last 4 year but I didnot expect this kind of harassment.