A frequent issue in WordPress or WooCommerce: Email do not get sent. Here is a suggested path to resolve this.
Step 1: Install a log to see if mails get triggered
The first thing you want to do when dealing with this is make sure, that there is email activity to begin with. Here are two plugin that can help you:
Install one of them, then repeat the action that triggers the mail (register for a new account, purchase a product in your shop) and take a look at the log.