VMP but Shop Tab and Catalogue connected but not showing

[valeriaandinohats]

Hi 

I have connected my shopify to my pinterest account and am a 'Verified Merchant'  but I am having a few issues:

1. My 'Shop' tab isn't displaying on my Profile
2. I cannot see any of my products on Pinterest
3. In my profile I cannot 'save' changing my domain from my shopify domain to my business domain

any help with the above would be greatly appreciated