Mr Price Home - get it together and return my money to me!

I purchased a few items on 8 March and paid by debit card at the time. The goods were happily delivered a few days later and I was satisfied with my purchase. I then realised that I had been debited twice by Mr Price Home and initiated a call on 13 March to have the monies returned to me. It has been a nightmare since. The initial help address would not accept my emails. I called again and was given an alternate address. No progress. I have regularly received automatically generated emails apologising for the late delivery of my order and saying it is on its way??? I have received a few confused emails from Clancy Chetty about a late delivery, and this morning i received an email saying my order in on its way??? I have sent two emails to Clancy saying my problem has nothing to do with a late delivery. And I have also sent on the invoice and proof of double payment. Go figure. This is the most disorganised and ineffectual operation I have ever come across. I want my money back - all R1 269,96!