Hi @wpbetsy,
Thank you for contacting support, we have a very vast and extensive codex so you can check that have you done the right settings for the addon.
Codex: https://codex.mycred.me/chapter-iii/gateway/woocommerce/pay-with-points/
Also note that we have a support ticket system where we are moving users to handle the flow of support and that is why we divert users to the ticket system.
Please open a support ticket at mycred.me/support for any other issue or information you want to ask but keep it all in one conversation.
Thank You!