Frustrated and disappointed

I am a little frustrated and disappointed that the closer I am getting to being cleared the more overpayments are being made even though I am requesting for the creditor to be removed as soon as I am aware of the creditor having been settled in full. I have received a letter confirming closure and a refund is now due as the account has been closed and the amount is just sitting unattended. I needed to send an email to the creditor to ask them to please refund the money. Debt Rescue should be handling this as they are being paid to look after my affairs. Please can Marilize who has been given such incredible compliments assist with my account.