Hmm, that might be a problem then
But even then, would't they have to return the package (and also put it in their tracking info)?
If it was the case of an item being treated as prohibited it would be subject to destruction - and ultimately the tracking would flag it
With the tracking ‘stalled’ it probably is just sat somewhere in the system
Covid and Brexit will have an effect but things are getting through
Some parcels appear to be unaffected and get delivered quickly, others are getting delayed
Worst case it gets destroyed - your comeback is with the seller
Next worst is it gets returned, again your comeback is with the seller but at least they get it back
Best case is it suddenly starts moving again
Sometimes the tracking stalls even though the package has progressed, so all of a sudden multiple stages come up on the tracking