Because you bought the 180ETF fund, you can only trade on the floor, so there is only one way to pay dividends in cash, and you can't invest again without dividends. The fund has a clear time for the specific dividend payment, which does not exceed three working days.
Etf funds, also known as exchange-traded funds, use floor stock accounts and floor fund accounts. It is an open-end securities investment fund product listed and traded on the exchange. So etf funds can only be cash dividends.