Tata Indicom — Charges applied in roaming without notification

Hi !

I am using tata number = [protected]

This card belongs to pune region. I got a huge number of bill from company saying that roaming charges has applied.

When i entered mumbai ; i didn't received any notification from tata sim regarding roaming area and charges for call rates in roaming. Like idea or vodafone sends roaming notification while travelling.
So, i didn't consider it as a roaming.
Secondly, after this all, i asked customer care for roaming pack rate cutter but they told they don't have such pack for roaming outgoing.

Now company has blocked my outgoing on this sim card
This is a ridiculous customer service from tata ; which i was not expecting.
I decided to change my operator.

I expect a call and proper apologise from company and reduction in bill for adding roaming charges without notifying anything. That's it.

Thank you.