We will send you invoice every time you confirm to buy quotas with us 每次你购买任何rcu组合，我们会立即寄送单据。
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We will send you invoice every time you confirm to buy quotas with us . you are required to settle the payments as soon as possible in order to activate your new rcu ( s ) 每次你购买任何rcu组合，我们会立即寄送单据。付款确认后， udomain . net会马上启用客户所订购点数之使用权限。
