Can the balance of the dividend account be used to purchase goods?

Yes, the balance of the participating account can purchase any item

The system defaults to give priority to dividend account payment If the balance in the participating account is insufficient, the balance in the deposit account will continue to be used

For example: if you pay for a product worth 10,000 baht, your deposit account balance will be 10,000 baht, and your dividend account will be 3,000 baht

Then when paying, the 3,000 baht in the dividend account will be used first for payment When the balance in the dividend account is insufficient, the system will use the 7,000 baht in the deposit account to continue payment by default