[Resolved]  Tata Sky — not properly understand

Hello
Ashik sethia from kolkata, just before 45 min i talked with customer care re my monthly charges.

Month is count as 30 days, i don't understand when i recharge on 5th june for rs.387, and msg shows that next recharge on 1st july, is this 30 days complete on 1st july.?

Today, 03.07.19, i recharge with rs.387 and msg shows,, expire this recharge on 27th july
Can u explain is that 30days on 27th july?

Here is the msg received
Tata sky id [protected]
Current balance rs373
Monthly charges rs462
Next recharge date 27-jul-19

When i talked cc
Next msg is
Tata sky theatre @ rs75 pm dropped. Current a/c bal: rs 375.96.

Please reply with explanation to my mail regarding my balance and next recharge as counting 30 days from today.
My mail id
[protected]@gmail.com

Thanks and regards