A buyer paid a 20% advance for a property in February 2024, with the agreement that the seller would clear the title within four months. The seller failed to do so and instead asked the buyer to pay the outstanding amount directly to the authority. After disputes, the seller agreed to cancel the agreement, return the initial payment plus a £400,000 profit, but has only partially repaid the buyer. The property has since doubled in value, and the seller has now completed the deed in their own name and agreed to sell to another party. The buyer has all documentation and wants to know if they can claim the property or seek further compensation.