Hi everyone.
I have one problem. I am creating a bank application in C# WPF.
I want to add a sms verification in that. So that new user can be verified by the code (generated by me itself) which has sent to there registered number just like an OTP service.

I tried Twilio service API for it. And it worked great. But it only allows me to send sms to only verified numbers which are on my account! 🙁🙁

So anyone knows any service which can send sms to numbers which can be implemented in my c# project.