Add Cellular/Data plan not there in Mobile Data Tab iPhone XS Max

If you're an existing customer on the Vodafone Idea network, you can avail eSIM support by sending an SMS message “eSIM email id” at 199. In case if you don't have an email ID registered with your mobile number, you are required to send an SMS “email email id” to 199. This will initiate the eSIM registration process.

Once the email ID is validated, the telco will send you an SMS message from 199. You need to reply back with “ESIMY” to confirm your request. After that, you'll get another SMS message from 199 asking you to provide a consent over a phone call. This will initiate an email with a QR code to your registered email ID that you need to scan on your device.

Only then you will see the options... Settings > Mobile Data > Add Data Plan

Make sure that your device is on active Wi-Fi or mobile data. After that, you can scan the QR code on your iPhone by going to Settings > Mobile Data > Add Data Plan. The device will now ask you to scan the QR code you've received on email.

If you're a new customer, you can get eSIM support by visiting your nearest Vodafone store with a proof of identity and a photograph. It is recommended to carry your smartphone along so that the QR generated during the process can be scanned.

The solution is not helping.

There is no "Add data plan" button or option available. Hence unable to scan QR code that option.

On scanning the QR code - using the top right draw down; it just shows the data logo and does not proceed.

How to activate eSIM or dual SIM on Vodafone Ideas (or Vi), on a iOS 14 device. Please help.