Website Development

Hello, I need a website that sends multiple text messages to a user
- a user should able to create an account (only require name, phone number, and email with email confirmation)
- there's a free trial that doesn't need the user to make an account
- there are also extra services where a user can pay to use.
- the free trial: user enters a phone number and the outcome we send them 5 text messages.
- the paid services: for $1 user can send 15 text message