拒信，求助如何argue

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申请的荷兰乌特勒支大学，昨天收到的拒信

The motivation for our conclusion is:
1. Competency 1: Academic knowledge and skills
Unfortunately, your bachelor’s degree in Psychology does not warrant admission. To qualify for admission to the Master’s programme, you need to have completed the equivalent of three years of study at a Dutch research university. Your degree has been assessed as an equivalent of two years of study at a Dutch research university. Consequently, based on the assessment of your academic education you do not meet the academic level of the competencies required for admissions into the Master’s programme.

We want to thank you very much for your interest in studying at Utrecht University and we are sorry our answer is not more favourable. We wish you every success in your future (academic) career.

本科双非一本，绩点3.5，均分84.79。本科真的不是野鸡大学...学位为什么会被评估成两年的...是不是因为双非背景，希望有前辈或者小伙伴帮忙分析一下，超级感谢！