I would like to change the phone number for parcel with tracking EH045740903US. The correct phone number is 86 15322497052. The wrong phone number was entered and now my friend in China is not able to pay the import tax on the item and it has been stuck at Guanghzhou for over a month. Please help.

Hello my package is CW292270639US and the name Ednauh Kamlondy. It was shipped from the US and they were unaware that the package needs my phone number. It has been in Chengdu for a couple days but I don't know how to get a hold of it. My phone number is 17761229367. To add to the matter, I speak very little chinese. How can I receive my package? Can I go pick it up in person? Where is it exactly in Chengdu?

EV984430514CN
EV984429992CN
EV984424108CN

These 3 parcels were arrived at Saudi , are waiting for the customs clearance . But the customs phone number given by postal office is (+966) 1 289 7473 uncorrect . No one pick up .

Please can you tell me one useful phone nunmber of Customs office in Riyadh ,Saudi Arabia?
Or who or which phone number I should contact ?