You need to register the way to receive the bitcoins as follows.

• in SkyPhone > "Point-Paid Calls (for Masters)" > Tap "How to Exchange Points" and enter an address to receive the bitcoins.

50% of your earned points balance can be exchanged for cryptocurrency.

e.g. If your earned points balance is 10,000 pts, you can get cryptocurrency equivalent to 5,000 yen.

At the end of every month, you can exchange them for the cryptocurrency you selected.
Only when your earned points balance*0.5 equals 5,000 or more, you can exchange the points. (If it's less than 5,000, the points will be carried over into the next month.)

Note: If the the Points are over 5,000 yen, they shall be exchanged automatically to the cryptocurrency that a Master designated.