@ramasrinivasan
i suggest you close all Browser and do clear cache and cookies for any Browser,
and try open one Browser incognito mode,
or try it for a different Browser and open incognito mode,
how to open Browser incognito mode visit Here link,
how to clear cache and cookies and History visit Here link,
and use a Browser from your computer,is better
use Browser microsoft edge or chrome latest version
and just make sure your Browser is up to date update
sometime is the Browser is not update is give a issue.
how to update your Browser visit Here link,
and Restart your computer, is will help a lot,
How To Change Your SIM Card
follow the below steps:
- Log into your My Account
- Go to Plan and Add-Ons > Change SIM Card
- Enter your new SIM card number
- Select where you would like your 6-digit security verification code to be sent to. You can choose to have the code sent to your email, please select the email option.
- Check your email or phone for your security code, and input the code into the page
- Click “Verify Code”
Please note: after 5 failed attempts to verify your security code, your account will be locked, and you will need to have your account unlocked and your SIM card manually updated by an agent by submitting a ticket here link,.
- Once you have verified your code, click “submit” to complete your SIM card change, and you’re all set!
