Q: My face time isn't working? I buy this mobile from but now I'm in Sri lanka

Where did you purchase the phone?

From this article, Wireless carrier support and features for iPhone in the Middle East - Apple Support

see, this note. FaceTime may be unavailable if your device originates from this region and becomes unlocked or is used in another country.

Re: Facetime On iphone from Qatar

Yes, this is expected behaviour as outlined in the note above.

You would need to purchase a phone from a region where there are no restrictions on FaceTime.

You could move back to Qatar and just live there...

samoshi wrote:

 

OK , now then ur telling me there is other option to fix this?

Correct.

Begging will not alter reality in any way.