Peter, good afternoon!
Going through our service / activating an extension in a browser before making a purchase is the main condition for calculating a commission by a store. If it is not recorded, we do not receive information from partners. You can always view your transitions in the "Orders and Finance" section.
Since you did not go to the store for 11.19, cashback cannot be credited. We recommend that you reinstall our extension or go to the "Go to the store" button. If you have any questions, you can always contact our care service (section "Help").
Sincerely,
LetyShops team