帮忙翻译下一下几个句子..谢谢了..

1, We are going to stay here for fifteen days. Could you write down the price for two rooms as three hundred dollars? I will pay you extra money for the tax.

2, Could you drive me to buy a cellphone SIM card and top it up?

1. We plan to stay here for 15 days and could you give us two rooms for 300 dolloars, we will pay for the tax.(后半句关于税的可能不太对，因为我没看懂你的意思）
2. Could you drive me to buy cell phone card?

1.我们准备在这里住15天..可以把两个房间的房价写成300美金吗?到时候可以税的差价给你。

We plan to stay here for 15 days. Can you put down $300 for the price of two rooms? I can pay you the difference after tax.

2..你可以带我去可以买手机号码卡和充值卡的地方吗?

Can you take me to a place where I can buy a cellphone smart card and prepaid cards?

smart card是又叫SIM卡，每个卡有一个独有的电话号码。
prepaid card是充值卡，不同于phone card（长途卡）

1.We are going to stay here for 15 days. Could you fill in the invoice 300 US dollars for two rooms? We will pay you the tax when we check out.
2.Could