I am seller from UK, and our Royal Mail post was disrupted following a cyber incident.
I send all orders in time. I have only 5* reviews, and I have noticed that for this month I didn`t receive Star seller badge.
Radu
Looks like you missed out on tracking.
Could have been that the shipments were late due to not being able to ship out any international orders, assuming they didn't extend their shipping times out far enough (I saw many shops extend one week thinking it would have been resolved quicker)