You have an agent - make 'em work for this. Coming here for free advice should get you absolutely nowhere, because we know nothing about your specific contract, the timely processing of your contract or the written details therein.
You are asking a question that has legal consequences in a very specific situation. Real estate agents are not permitted to dispense legal advise, so you should not look for any in a forum such as this. That said, the first thing you should do is talk to your agent and then his/her broker if you do not get a satisfactory answer. If you believe you can get satisfaction by taking legal action, then hire an attorney experienced in real estate litigation, and prepare wait a long time to get a resolution.
Otherwise, keep your home on the market, and review your agent's marketing strategy. If you are still not satisfied, ask your agent to release you from the listing agreement and hire another agent.
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