Usually dividends (or other income) get paid into the fund and the price of the fund’s units increases accordingly. The fund manager then reinvests the dividends on your behalf in more shares and bonds. Funds that operate in this way are called “accumulation” funds (often abbreviated to “acc”).
Sometimes (but less commonly for funds held in ISAs) the fund manager will pay the dividend income out to the fund’s investors. These sorts of funds are called “income” funds (often abbreviated to “inc”).
Currently we only offer accumulation funds. If you would really like us to start offering income funds then please send us feedback.