Why is adding products to catalogue not working as it should?

I have been in contact with meta support can got thrown here for my issue regarding meta pixel and catalogue

you can find my issue here

ID of this case is

For others the issue is that I have set up meta pixel and micro data tags as the documentation say. But im not getting products into my catalogue no matter what I try. The meta support says everything in their end looks correct and send me here for the developers to look at what is wrong.

Asked about 3 weeks ago