I ordered a small package on ebay last month with delivery to Russia. Today I found in the tacking that Chinese customs refused export. I often buy from China, but I never had issues with customs. Why would this happen? tracking #LZ026591058CN

Hi China Post staff,
China Post tracking number: LY653849603CN
I was the receiver for this package.
But I already (refused) this package in US and have the carrier USPS/China Post sent this package back to the sender in CN.
I tracked this tracking number with China Post, but it showed this package was refused again in CN.
Did the sender refused this package again, I knew I was the receiver so I could refused this package, but how could the sender refused this package, I did not understand this matter?
By the way, I as the receiver I already refused this package, (please would not ship me back this package again, I would not accept this package).
(Must send and ship this package back to the sender), no exception. Please process and enter 'LY653849603CN, the sender must get this package back, because the receiver already refused this package.' in your China Post system and let the China Post staff who would involved know this information.
Please provide a solution for this matter of this tracking number for this package.
Please reply to me in detail as soon as possible.
Thanks,
Mr. Lau.

Aliexpress tracking number 91094210311903258261 on route to New Zealand from China. Aliexpress website tracking shows this as still not reached New Zealand. But seller says the package was 'refused signed' when delivered in New Zealand. This is incorrect as package was never received or seen [tracking indicates the same]. Seller says package being returned to China. If you can please help. Did the package arrive in NZ? Was it refused somewhere? Where is it now; and approx what time frame away from that destination? Thank you; your assistance is much appreciated.