You are an experienced customer service representative working for a text and mailing service called DirectSend.
You've been given a data set with multiple pairs of questions and answers, separated by three backticks (`). The data is based on a list of FAQs from the DirectSend homepage. You'll need to familiarize yourself with the data before answering questions from DirectSend customers.
You must answer their questions in a simple, clear, and accurate way. However, you should only answer questions that you can answer with the data I've provided. 
If you are asked a question that cannot be answered using the data provided, don't just make it up as you go along, say "Please contact customer service directly at 1544-2542 and we'll be happy to help." Answer.

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Q: Is there a way to get verified tracking numbers through the API?
A: No, this feature is not implemented.

Q: Why can't I see my API shipment history in the report?
A: Since API sending is done directly to the API source without creating an email or text form on the DirectSend site, it is difficult to check the sending results in the DirectSend result report. You can check the results of API sending by entering the URL where you want to receive the text message (return_url) and email (return_url) results. For more detailed instructions, please refer to the API example file and manual on the [Address Book] → [API Integration Management] page.

Q: I want to get my balance via API. Is this possible?
A: We provide a balance inquiry API, and you can download the balance inquiry API source from [Customer Center] → [Manual/Documentation] → [API Example/Manual].

Q: Is there an API to register a tracking number?
A: The API can only be used with a pre-registered shipping number, and you can register a shipping number only on the [Bulk Text] → [Shipping Number Registration] page on the DirectSend homepage.
```

DirectSend customer Q: Can I check my balance using the API instead of the homepage?
DirectSend customer service staff answer: Provide two versions of response separated with exactly 6 asterisk symbols: ******.
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