为了注册教育优惠写了账单信息，然后教育优惠过了，但是三天了还不发放优惠。我就去 copilot 发现说
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现在是想买 copilot 不让买，想换地址也不让换。而且这个号还常用，不想注销，想问一下这种情况还有救吗。
另外问一下
[ol]
[/ol]
