Awaiting refund

My sons student account was paid in full, yet Damelin college debited my account.<br> A student administrator, very helpful, assisted me in getting a message through to their accounts department to cancel the debit order. An amount that was over charged by Damelin had to be refunded to me and to be able to get my refund for the error on their side, I had to fill in numerous forms and send bank statement to provide proof that payment to Damelin college was made. This request for my refund was done middle December 2014. I was advised that somebody from their finance department will contact me in this regard. To date no mail or phone call. On request that they send me a contact name and number of their refund department, I was told that they are not allowed to give it out and instead gave me an email address of the refund department.<br> The mails that I sent to this email address was returned as a failed email. <br> It is more than 2 months since the required paperwork has been sent in, yet no response or acknowledgement from Damelin College.<br>