Airtel — my 4g sim is activated but the net is not working or working in 2g

Address: Indore, Madhya Pradesh

Few days ago i have recharged my number [protected] with 399 in which i was supposed to receive 1gb 4g data per day but i am receiving 3g data only. I am using it on mi poco f1 phone which is 4g and i have set the data settings as 4g also and lte mode. But i am receiving only 3g signals or no signal everywhere in the whole city. On my other everyone with airtel number 4g services are working very fine.

Im tired of switching off and on and putting it in airplane more all the time.

I have attached the screenshots of my phone in which you can clearly see that i have all the settings which are needed for 4g internet but no signal for data is showing in both arrows only. And no sim detected too.

So this is my humble request to you that please look into the matter and resolve it as soon as possible.