Check charges for using

• If phone bills are sent to you, you should check if fees are exactly charged as the rate system that you made the contract in membership
• Contents about discount of the bundling services are shown by the discount details in bills by service. Partial business operators send integrated bills to the users who ask them to send
• Business operators can notify users of unavoidable cases including management environment and abolitions of the bundling services for a certain period of time and stop provision of the bundling services