hi, i dont think the site has email deliverability issue, also i reset some setting and invoice is able to be sent automatically after purchase now, but its not sending the template i updated from woocomerce-setting-email-edit button. also i created a pop-up with mail chimp, but the pop-up only works on computers or tablets, it does not display full content on mobile, only show small words on top of the phone. im very new to this and some areas are complicated to me, thank you for your response and patience with me.