neoderick12 wrote:
my sister bought me an iPhone 4s in Bahrain
Do you know where in Bahrain your Sister purchased the iPhone. Whilst I am not aware of a ban of FaceTime in Bahrain, in some Middle Eastern countries FaceTime is removed/banned at the express wish of their respective Governments. If the iPhone was bought from a place that imported iPhones destined for these markets then it quite possible you have an iPhone that will not have Facetime.
Can you check your model number in Settings>General>About>Model - if it has an AE at the end of it then it is a model destined for the Middle East where FaceTime is banned.
If it doesn't then try the following check Settings>FaceTime>On and Settings>General>Restrictions>FaceTime>ON. On the 4 & 4S FaceTime is accessed through contacts. Go into your Contacts, access the contact you want to FaceTime with and you will see a tab at the bottom of their contact card. You can also access FaceTime by going into your Phone app, select dialling keypad, dial number, press call and an option for FaceTime on the keypad will appear.