The fixed investment business of the bank's fund is actually an investment method that automatically buys the funds in your current account into the fund varieties you specify according to your own settings (such as the minimum 300 you mentioned).

Specifically, you must first apply for a bank card of Bank of Communications, and then you need to open a corresponding fund account, because the premise of buying a fund is to open a fund account.

After both are handled, you can set the types of funds you need to invest and the shares you want to buy, and then specify a specific day, so that the bank will automatically deduct money from your current account every month to buy the corresponding fund products.

In detail, you can take your ID card and bank card to the bank outlet to consult the lobby manager and financial manager, which is also possible.

I hope I can help you.

All banks should have this service at present.

So everything can be handled, and the process is similar. First, open a bank card and a fund account.

After that, you can operate the fixed investment

If the bank card online banking has been opened, you can also set your own fixed investment products in online banking.

I hope I can help you, thank you