You will need:
- textnow account / google voice account
- script 

1. Make account on textnow.com or get google voice account
2. You will need write or copy paste script 
example:
<NAME> this is the <WEBSITE> fraud prevention line we sent this automated text massage because of attempt to change ur password on your acccount. If this was you please text "YES", if not text "NO"
[if yes] To block this request please write 6 digit code that was sent to your mobile device, its for verify and secure your account.
3. enjoy OTP