Do SMS products support vouchers?

Vouchers are not applicable to SMS products.

What is the billing method of Global SMS?

Global SMS: Pay-as-you-go（billed monthly before the 3rd day of each month).
For more information, please see Product Prices. For billing rules, please see Billing.

How do I apply for a SenderID? Do I need to pay for it?

If you send more than 10,000 SMS messages in a single market per day, you need to register for SenderID from each carrier separately. You may need to pay for SenderID in some markets. For more questions, please contact your sales rep or submit a ticket.

What can I do if SMS service is in arrears?

Tencent Cloud provides the SMS bill of the previous month before the 3rd day of each month. You need to pay the bill not later than the 8th day of the current month. Otherwise, Tencent Cloud will suspend your service till you pay off the arrears, and you are held liable for any consequences arising from such suspension.

Is a fee charged for user's reply?

The operator will only charge the sender a fee for user's reply.