Hi, my tracking details say that my package is in the local UK sorting office but its been there for a week now and Royal Mail wont recognise the tracking number ZA00381493101

Please can you help

Ant

I’ve been tracking my package and it says that it’s location is unknown.. already
Where is my package

Hi there,
I hope you can help me. I ordered something from Aliexpress on 20th April, and apparently it was handed over to the airline on 23rd April. It's 25th May and when I track it, it appears as it was in Singapore and now its location is "UNKNOWN". It also says "Information Received – Item En Route to Postal Facility (with the date of 23rd April). Could you please let me know where my parcel is? It seems to me that it could have easily got lost somewhere and neither the seller nor the post service (CAINIAO) have any clear answers for me. Same thing happens with parcel LB130652768SG: it appears as "UNKNOWN". What does that mean, exactly?
I'm also looking for some information about parcel with tracking number LB132494512SG, as this one seems to have some more information but I don't understand if it is already in the UK or not.

Thanks for your help and kindest regards