Hello @nyeizvestnyi,
Thanks for your reply.
We are sorry to let you know that it would not be possible with the free version of the plugin. The free version of the plugin just allows you to limit the number of times each product may be purchased. You cannot restrict the total amount of purchases that a user may make from your website.
In such a situation, I believe you’d need to use the Per Product Taxonomy option. But this feature is only available in the plugin’s Pro version. As the WordPress Forum Guidelines restrict us from discussing commercial features here, could you kindly contact us through our forum so that I can assist you with the setup?
Kind regards
Moshtafizur