If you are not able to get in contact with the agent I would find out who the broker is and contact that person. You can tell your story to him/her. Hopefully, they can redirect you to another agent or cancel your contract.
If you are not satisfied with your agent and have been unable to contact them when trying to sell your property, it can be frustrating and unprofessional on their part. Repeatedly leaving voicemails with no response is unacceptable, especially when timely communication is critical in real estate transactions. If this continues, consider reaching out to their brokerage to express your concerns and request assistance. You may also want to review your listing agreement to determine if you have options to terminate the contract and switch to a more responsive agent. Clear and consistent communication is essential, and if your current agent is not providing that, it may be time to explore other options.
You're ready for a bigger home, but you're stuck in a catch-22. If you sell first, you might end up scrambling to find temporary housing while your family lives out of boxes. If you buy first, you could be stuck carrying two mortgages while your current home sits on the market longer than expected.
Meanwhile, the market does not wait for you to