My parcel is to the UK, tracking number AG005870202CN. Supposed to be here by 11/9/13. Any ideas??

The seller (in China) told me it was posted on 10/8/13 but according to tracking info it says posted 1/9/13! Not sure what's going on and I need the contents urgently. I contacted the seller a couple of times during August and both times they said it had been sent on 10/8. Has anyone got any ideas how much longer it might take - it seems to be close to delivery but has been stuck for a while now!! Thank you