iPhone 12 Pro Max stuck in Clearance in Progress for more than 8 days

I placed my order on November 18 through Apple.com and I got to know from UPS site, order has been shipped on November 21 with the delivery date on November 25 and then got pushed to November 30.. On November 22, status got updated to Clearance in Progress and scheduled delivery date has been removed. Today (Nov 30) when I reached out to UPS to check why customs clearance wasn't yet completed, they informed me "customs in China has not provided the authorization to export the package, this has been clear at customs in the US but we have not received the confirmation for the customs in China" and asked me to reach out to Apple to know why customs has not provided the authorization yet as others has received this phone from same shipper. Tried reaching out to Apple support team couple of time and wasn't able to talk to anyone.

I'm wondering if apple lags in sharing shipping updates to customer as well as sharing proper documentation with customs. People who ordered after Nov 19th, has received their phones 3 to 4 days. Can anyone from Apple let me know what can be done for this issue? I guess best option is to cancel my order as Apple doesn't caring helping their customers.