Use Facebook Free via Grameen PhoneSIM

Grameenphone  sim users can use facebook easily without any cost,
To enjoy the free system you should follow the instruction below.
first you have any version of oprea mini software in your cellphone.

Secondly,You must write 0.facebook.com on operamini address bar.
Then you enjoy.
Some Precautions:-
1.Your SIM  balance must be zero.
2.you can browse the Facebook only no other site.
Good Evening.bye