An operator utilized an unfilled checkbox through which users could request that they do not receive any emails from the company. Since they couldn’t do that, they continued receiving information via email.
an operator utilized an unfilled checkbox through which users could request that they do not receive any emails from the company since they couldn’t do that they continued receiving information via email
 operator utilize  unfilled checkbox   users could request     receive  email   company since  ’    continue receive information via email