find out the name of the courier company used.
my guess is your phone left china under the tracking no given but was consolidated with 'mwangi's shipment from netherlands and a new tracking no issued.
Mwangi used the new tracking no to collect his stuff.
what we cant guess is if mwangi ordered a similar shipment from netherlands.
Start with the courier company as your phone might have been forgotten in netherlands at the courier co.office.
stuff get misplaced or re routed at transit points.
"The true measure of a man is how he treats someone who can do him absolutely no good.