Product pins not showing on Pinterest account

[KazD]

Hi, I am struggling with the Pinterest app. I have the app on my Shopify store, have been approved as a merchandiser by Pinterest, and my store says 55 products have been successfully published. The mystery is where? I see from previous discussions on here that other shop owners have had similar problems, but the replies haven’t helped me solve this issue yet. I have even added the rich pin generator code to no avail. I can see the products when I click on ‘Ads’ on Pinterest, however I assume this will activate a promotion and cost money, and I thought that by integrating with Pinterest the products are pinned automatically and for free. Most of the products on my store are via drop shipping (Prodigi), but no-one has said this causes any issues, but maybe it does. Anyway, I would be grateful for any advice.