The seller provided a tracking number that is absolute nonsense, apparently provided by Royal Mail and when you check it on their tracking page it states "This is not the sort of number we were expecting"
Not surprising really as it was 23 digits long. I mentioned this to Paypal and received not even an acknowlegement.
Then, Paypal find in the seller's favour because "The seller provided a tracking number".
So, there you go sellers. Put a load of garbage in as a tracking number and you'll never have to actually send goods ever again.
I can see a day in the not too far distant future when the only two viable businesses in the world will be RyanAir and Paypal