you could sue the school for specific performance.
Firstly, there is an offer, although you have not accepted the offer, but you have detrimentally relied on the offer by withdrawing your application for other schools. Secondly, your detrimental reliance is reasonably foreseeable. Thus, the school is estopped from withdrawing its offer. You are still entitled to accept the offer. if the school refused to perform its duty, that is a major breach of the contract and monetary damages is not adequate.
you could sue the school for specific performance.
Firstly, there is an offer, although you have not accepted the offer, but you have detrimentally relied on the offer by withdrawing your application for other schools. Secondly, your detrimental reliance is reasonably foreseeable. Thus, the school is estopped from withdrawing its offer. You are still entitled to accept the offer. if the school refused to perform its duty, that is a major breach of the contract and monetary damages is not adequate.
thank you for your information. UCLA is not my favorite choice,but i believe UCLA still should offer me appology for its mistake.