Here's a refined version of your job description for a virtual mystery shopper:
Job Description:

We are seeking a reliable and detail-oriented individual to join us as a Virtual Mystery Shopper. In this short-term project, you will help us evaluate our client's online presence and customer service. This opportunity involves completing several brief tasks, with a payment of $10 upon completion. If the project goes well, there will be opportunities for you to repeat this for other clients.

Responsibilities:

    Online Interaction:
        Find our client’s website and rate your overall experience.

    Website Evaluation:
        Visit the client’s website and provide feedback on user-friendliness, design, and other relevant aspects.

    Phone Call Evaluation:
        Call the designated phone number and assess the quality of interaction, including the representative's knowledge and helpfulness.

Requirements:

    Location: You must be located in Tennessee, USA.
    Equipment: A mobile phone for making calls and performing online tasks.
    Skills: Basic computer skills and internet access for website evaluation.
    Attention to Detail: Strong ability to provide detailed feedback.

Payment:

    Amount: $10 upon completion of tasks.
    Process: Payment will be promptly issued after you complete the required tasks.

How to Apply:

Please introduce yourself briefly and confirm your location (e.g., city, state). We will get back to you shortly with further instructions.

This version clearly outlines the job responsibilities, requirements, and application process, making it easy for potential candidates to understand the role.