This API is needed to retrieve the recipient id to which the user plans to settle the funds
unsettled_fund : Total AePS business (last 7 days) minus settlement done (last 7 days).
For example: If a user has done AePS business worth of Rs. 1 lakh in the last 7 days and he/she has settled Rs. 25k in the last 7 days so he/she can now settle Rs 75k (1 lakh - 25k).
remaining_limit : Total remaining limit of the maximum amount that you can settle per day.