1. The recharge receipt for receiving invoices must be the same as the shenzhen tong Kaka number without the "invoiced" seal.

2. The collection of prepaid invoices in Shenzhen Metro Customer Service Center is limited to the transaction between AVM automatic recharge machine and ticketing processor, and there is no space restriction.

3. When recharging equipment in shenzhen tong, you can go to shenzhen tong outlets to collect or print electronic invoices, but the customer service center does not accept them.