Delete Products from Merchant Center

I am encountering a very strange problem and Google support suggested to raise this with you guys. So i have around 400 products which i had deleted from WooCommerce but for some odd reason they keep on showing up again and again in Merchant Center. Inside Merchant center i don’t have an option to delete them because all products are synced through Content API and Google is saying that you need to delete them through the plugin.

I tried everything in Google for Woocommerce plugin and don’t seem to find delete option anywhere? Can someone please guide me on how to delete old unwanted products which are not longer in WooCommerce. Already cleared cache, even disabled it all together but the issue still persists.