Check transaction history from AC details in your portal which will give you the info about this credit... post a ss of that transaction history screen... :k
Those Subscribers who are facing NO SIGNAL issues and have complained about it will get 3 days credit balance in their account.
In my case, I have subscribed to Supreme Kids Pack, Monthly Charge Rs 290, Therefore Daily Burn Rate (DBR) is Rs 9.53 (Approx.). So got a credit of Rs 9.53 *3 = Rs 28.59
Screenshot from m.mytatasky.com Mobile Website is Attached. I cannot read the Alert on my STB and therefore cannot post its screenshots due to my No Signal issue still not resolved by Tata Sky team.