Yes, you can buy with the same bank card, or you can redeem the funds for two time periods separately. However, it depends on your share. Generally speaking, if the redemption is based on 1 1,000 shares, holding less than 2,000 shares, you can't redeem it twice, but you can only redeem it all at once.

However, it is better to hold the fund for a long time, and the price is not high now. If it is redeemed, all the profits earned will be eaten up by the handling fee, which will actually become unprofitable.