No response, no refund after valid request submitted

I accidentally paid funds into an MBD Incorporated account that was already paid up and close. The account was still loaded as a beneficiary on my internet profile and I accidentally paid the funds into the MBD account and not the correct MFC account. I requested a refund 2 weeks ago 8 August 2017 and sent the request through to Nkosinathi after I was referred from 1 consultant to another consultant. I never received any response from Nkosinathi and I have not received any refund up to today which is 19 August 2017. Nkosinathi advised I would have received it by 18 August 2017 and I sent him an email yesterday asking about it and still received no response. I need my funds returned urgently as I have other responsibilities with the funds.