Hii James

I know one website which provides the same services which you want.

Visit here: https://www.alcodes.com/

Try latest version of mailer

First you need collect phone number of users
Then you have two option
Use free api but its limited and attached power by footer as well,
Free api provider https://www.textlocal.com/integrations/api/
Use paid api (purchase api)
Best paid api provider https://www.bulksms.com/
So what your plane if want free api just comment here if paid send me api details (for testing purpose) email [email protected]
In both case you need register and get api
When you install component you need enter api details then able to use

yes, verification sending fine. Would yo create a bulk message sender for admin.

Is verification email sending by your site?

Malik, it is not working for me. Would appreciate your help.