iMessage and FaceTime not working on my iPhone

Hai bro day before yesterday i change my port from jio to bsnl. Now iMessage not working activated failed nu varuthu. Any other reason

hello bro, It takes 2 days maximum to activate all system services. Kindly wait. try activating iMessage tomorrow. minimum 20Rs sim balance maintain pannunga. then try activating again bro.

Already 3day achu bro account la 10rs recharge panni vachu iruken. Seri 1day wait panni pakkuree

Already Airtel and BSNL la intha issue irukunga. iMessage and Facetime activation delay aagum bro. multiple times namma try pannunathaan activation successfull aagumnga.

once activated it will work normally, until next time we deactivate or change SIM card.