Do You Even Care Nedbank Personal Loans?

I went to Nedbank Keywest on the 28th of December 2017 to reverse two payments (R1,000.00 & R2,500.00) I made into my Nedbank Personal Loan account on the 23rd by Accident and they told me I must speak to Nedbank Personal Loans to correct this. I was told by Nedbank that the matter has been escalated and that I'll get a response in 3 to latest 7 Days... I'm still trying to figure out if a day is equal to 72hours in their department.

Every time I try to follow up, all I get Is a ringing tone and nothing more.

I believe I'm up to date on payments and shouldn't be given such a hard time... this is really causing inconvenience to my other creditors.