在AVIS公司下了订单，当时订了把赔偿减少到330的EXCESS
保险，后来看到有童鞋发的专门的车险公司的不计免赔
保险，我想问的是，如果我修改订单，不买租车公司的EXCESS
保险，直接购买车险公司的DAILY EXCESS 产品，是不是就可以把出事后3000的赔偿降为0？或者说这个产品是需要在买了租车公司的EXCESS
保险后额外购买把一旦出事后所需支付的330，降为0呢？
我把网站的说明COPY了一下：How does car excess insurance work?
Car hire insurance offered by the rental car company normally includes cover for Collision Damage Waiver (CDW) and Theft, you are still liable to pay the first portion of the repair or replacement costs. This is also known as the excess or deductable.
The excess amount on insurance for car hire typically ranges from between £500 and £1,600, so if your excess is £500 and someone drives into the back of you causing damage of £750, you will have to pay £500.
麻烦明白的童鞋帮忙解释解释哦，非常感谢。
Insurance4carhire covers you against the entire excess fee and for damage to the roof and undercarraige of the car plus the windows and tyres.
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