Not able to enable chat messages after sim change of Airtel

[Roosh]

I am not able to enable chat messages after replace my faulty Airtel postpaid sim change even after more than 24 hours. My hadset is S21 FE SD

[SataruGojoo]

Give it some time.. it's configuring.
It will work after some time.
(This can take about 12Hours.)

[Roosh]

Again n again it prompt for registration process.

[cs_member10]

Dear Samsung Member,

Greetings from Samsung Customer Support!

As per your query, we would request you to kindly contact your network service provider they will provide you with the exact information regarding this.

Warm Regards,
Samsung Customer Support