title: Add OTP verification in WordPress(WooCommerce) in Registration Form
body: <p>So I was working with this woocommerce theme (Sober) and wanted to add custom OTP verification after the user registers to my website.</p>
  
  <p>All I want is that when user fill up the registration form and submit, an OTP is send to his/her phone(Don't wana use third party plugin). Once the user verifies the OTP than only the account be created.</p>
  
  <p>I have added few custom field to my woocommerce form, but don't know how to redirect to otp verification without the form being saved unless otp is verified.</p>
  
  <p>I am pretty new to WordPress and WooCommerce. </p>