If you're facing challenges with a non-responsive Jamaican real estate agent who won't return your phone calls, here are some steps you can take:

1. Try Different Methods of Communication: If you've been relying solely on phone calls, try reaching out via email or text message. Sometimes agents may be more responsive through alternative channels.

2. Leave Clear and Concise Messages: When leaving voicemails, ensure your messages are clear, concise, and include essential details such as your name, contact information, and the reason for your call. This increases the likelihood of a response.

3. Follow Up: If you haven't received a response within a reasonable timeframe, follow up with another call or message. It's possible the agent may have missed your initial attempt to contact them.

4. Contact Their Agency: If repeated attempts to reach the agent prove unsuccessful, consider contacting their agency or brokerage. They may be able to assist you or direct you to another agent who can address your needs.

5. Seek Alternative Representation: If communication remains elusive despite your efforts, it may be time to consider seeking representation from a different real estate agent. Look for an agent who is responsive and attentive to your needs.

6. Document Your Attempts: Keep a record of your communication attempts, including dates, times, and methods used. This documentation may be helpful if you need to escalate the issue or seek assistance from higher authorities.

7. Consider Legal Options: In extreme cases where non-responsiveness leads to significant consequences or breaches of contract, consulting with a legal professional may be necessary to explore your rights and options.

Remember, clear and open communication is essential in any professional relationship, including those with real estate agents. If one agent is not meeting your expectations, don't hesitate to explore other options to ensure your real estate needs are met effectively.