Clearing an Amount From Undeposited Funds

Hello,

Some time ago a correction was done where a payment was applied to the incorrect customer card, by reversal and the payment applied to the correct customer.

Not sure how, but this has created a balance in the Undeposited Funds account for the original payment amount, it is not in the transaction list to clear. No matter which way I try to correct this there is always that amount there either in credit or debit.

I would really appreciate some help to clear this out.

Thanks

Laura.