This is just a draft, to be perfected.
Overview
Every DID user can get a Default Space by answering questions in the DID Wallet. The system will give away 10 units for each Default Space for free use. If you want to get more units, you don't have to worry. You can upgrade Default Space by paying. The system will charge based on the number of units used (the gifted units will neither disappear nor incur charges).
Preconditions.
- You have obtained the Default Space through answering questions in DID Wallet.