FundsNetwork said ensuring its clients received the highest standard of service possible was "hugely important to us".
The spokesperson added: "The errors Mr Morris experienced in the handling of his case fall short of this standard, and we have reviewed the points at which they occurred to ensure they remain robust for the future.
"We would like to offer £300 each to the couple as compensation for the delays and errors they experienced.
"We will also be in touch with Mr Morris to agree the most appropriate way to provide additional redress based on the time his clients were out of the market. In addition, we will also offer Mr Morris a sum for the time he spent addressing this situation."
simoney.kyriakou@ft.com