First Month Bill Explanation Needed

Messages
24
Location
India
ISP
BSNL
Hi, My first bill can't be downloaded from Self-care.
On Self-care it's saying bill amount is 2100+
But in BSNL connect app it's says around 1200.
I've deposited 849₹ before the connection.
What is my real bill amount?
I've attached pictures in reply (I don't know how to add pictures in main thread)
 

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