2. Clearly state the rate, payment method, deadline and other related matters.
3. Send the notification letter to the person in charge of the square dance group or the relevant responsible person.
4. Ensure that the notification letter clearly explains the fee rates and calculation methods.
5. Provide clear channels for payment of fees and payment methods.
6. Clearly specify the deadline for payment of fees in the notification letter.
7. Follow-ups and reminders can be made before the deadline for payment.