Hi @felizn,
Thanks for your response.
Yes, you are correct. There should be a wholesale customer price option in your product settings.
Please check if you have an updated version of WooCommerce and a running PHP version not lower than 5.6.
Also, could you please try to perform a basic debug on your site to check if there’s a conflicting theme or plugin that might cause this issue. To do this, please have a backup of your site first. Then switch your theme to a default WordPress theme like Twenty Seventeen and disable other plugins (except WooCommerce and WooCommerce Wholesale Prices), Afterwards, please check if the issue persists.
Kindly reach out to us via our support form here if you continue to experience this issue and please include a temporary admin credential so we could investigate further: https://wholesalesuiteplugin.com/support/support-request-form/
I hope this helps! Please let me know how it goes!