Mobile Payment Connection (SMS)

I have a website. Basically, HTML5 games. If you want to undertake the implementation, I will send the data to FTP - you will see how it is played "behind the scenes".


The user will be able to purchase access to the games. In practice:

1. the user enters the landing page.
2. enters the phone number and then has to send a confirmation text message
3. After confirmation, it is saved for subscription.

And I would like him to have access to games as long as he is subscribed.


If this is too difficult a task, the same connection to make payments work will also make me happy;) Actually, I think that it may even be that the home page is not accessible until he gives a registered phone number. I don't know exactly how this can be done "cleverly". :)


I am asking for an initial quote and delivery time.

Best regards.