GROUP BUY
Manufacturing is the first step. It can be delayed by communications issues (language barriers), slow factories (bigger customers take over time slots), technical problems (uncommon), and shipping / parts delivery issues (customs clearance can be messy).
Shipping is the second step. Things begin with packing and labeling. Once at the warehouse, check-in begins. Every item must be counted and inventoried. And then we will repacking them and ship them by FedEx.
Packages must clear customs. Sometimes that can take times on its own, especially during major holidays.
You can track the item from https://www.fedex.com/fedextrack/