Hi
I hide the buy button by the following CSS
.postid-2416 .edd_purchase_submit_wrapper{display:none!important;}
For another question, please create a new folder in the child theme folder, the folder name should be ‘page-templates’, then go to the parent theme folder, dgwork/page-templates/, copy page-account.php file to the page-templates folder of the child theme. Then, delete the following codes:
<li<?php dgwork_current_item($account_page,'discounts');?>><a href="?page=discounts"><i class="fa fa-tag"></i><?php esc_html_e('Discounts','dgwork');?></a></li>
Thanks