In reliance just dial *123*123# and press call button
You will see messge on screen Trail N Buy pack at 0 for 3 days.
Then You will get cricket score free till 3 days.
After two days when this service is active again press *123*123#and again subscribe for 3 days at 0.
And continue this process in 1 or 2 days.
Try @ low balance. If U have high balance then also no problem.
Because this is not a trick .
It is offer by Reliance to its users.