First of all, you can't exchange online direct sales, you can only exchange them where you bought them. If you really want to change it, you can only transfer it to custody. This is very troublesome. You can call the customer service of the fund company to ask.

Secondly, although you bought it in a bank, you can register it on the fund company's website, register your account with the ID number you used when you opened the account, and then log in to check the share. But you can only inquire, and you can't redeem those shares on the website.