Login with your subscribed Email ID to verify your Subscription on WDMtech.

I renewed it 2018 and 2021. I updated my localhost testsite but i haven't updated my website.
The question is still how do I do it?

You need to enter your WDMsite login credentials of that account you have purchased/renewed the subscription.
If you did it already and not able to validate it, please submit a support ticket here: store.wdmtech.com/support-tickets/submit-ticket and send us your site's admin login & FTP credentials in it, we'll check it thoroughly.

To login to WDMsite i use a "username" but Joomla ask for "Login with your subscribed Email ID" i dont have a Email ID!.
When i try the username joomla say "Please Enter correct E-mail Address".

Please create a support ticket and send us your site's admin login & FTP credentials in it, we'll do it.

No i don't do that. tell me instead what to do.

We have sent your username, email and password on your registered email address.