这个需要修改自己银行卡的转账限额。
以建行为例，具体步骤如下：
1、查找建设银行，然后登陆建设银行。
2、进入建设银行页面，点击“缴费支付”。
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https://iknow-pic.cdn.bcebos.com/e850352ac65c10381847f1e8be119313b07e89da"/>
3、点击“缴费支付”，选择“快捷付”。
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https://iknow-pic.cdn.bcebos.com/cefc1e178a82b901a7d0fc197f8da9773912ef9f"/>
4、进入快捷付页面，填写委托授权书信息。
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https://iknow-pic.cdn.bcebos.com/d439b6003af33a87ae543f30ca5c10385343b5da"/>
5、查看委托授权书信息填写正确后点击下一步。
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https://iknow-pic.cdn.bcebos.com/54fbb2fb43166d226d502abe4a2309f79052d2f0"/>
6、确认委托授权书信息，点击“确定”。
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https://iknow-pic.cdn.bcebos.com/11385343fbf2b211dd09ba64c68065380cd78ef0"/>
7、委托授权受理就成功了。
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https://iknow-pic.cdn.bcebos.com/aa18972bd40735fa2b17729392510fb30f240830"/>
8、登录支付宝看看。
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https://iknow-pic.cdn.bcebos.com/730e0cf3d7ca7bcb2668f805b2096b63f624a88c"/>