[gndk]

Could be related to your site saying "Note: Due to high demand, current orders may take two weeks to ship. ".

Thats pretty long. What do you have set in your merchant center shipping settings? See https://support.google.com/merchants/answer/6069284?hl=en

[konschubert]

That note is just there since last week because there was a peak in orders and I am struggling to keep up. It wasn't there when they paused my merchant account.