To set a cPanel Store payment method to Primary, please use the following steps:
1. Log into the cPanel Store account here: https://store.cpanel.net/login
2. Go to My Account --> Account Settings --> Manage Payment Method
3. Under the arrow, click Make Primary
4. Save the setting.
https://cpanel.wiki/display/CS/How+to+Write+a+Deflection+Article includes guidelines for writing a Customer Service article.