小弟之前是每四个月投入一次，一次也才 $900，持续了约五年
两个月前寄客服希望调降手续费，也是回答了几个问题
最后就降到 $4.95 了
不过客服问我的问题不太一样，可能因为我没有说要换另外一家
我是跟客服说虽然新的 ETF 很多，不过我还是想继续买 Vanguard
其他家只要 $4.95 或 $2.95，虽然我量很少，还是希望可以调降
客服要我回答下列几个问题
1. What rate are you looking for ?
2. Do you plan on consolidating any accounts with TD Ameritrade,
making any large deposits or any large withdraws ? If so,
approximately how much value do you plan on depositing or withdrawing ?
3. Do you plan on changing your trading activity in the future ?
If you are changing your trading stratedy, how many stock and/or option
trades do plan on trading in an average month ?
4. Do you plan on trading any index options ?
How many contracts per trade for your options trades on average ?
从回答完问题到成功调降大概过了十天，因为我不知道在哪看自己手续费多少
所以是等太久了再跟客服问后续情形，客服才回说已经成功调降