The extra face is 2019 Edition.
The face have been put on the body that is 2018 Version which is non exchange and non refund.
Steps of swapping new face:
1) Remove the hair and pull out the peg by tool
2) Insert the peg on body
3) Warming up the new face (head) by hair dryer that make the face (head) being soft.
4) Put the new face (head) on body