Coricraft does not refund your money

I purchased a lounge suite from the Greenstone store on the 14 Feb 2016, which was on sale but I paid the full price. We contacted the manager the next day and he promised a refund of R2749. I emailed him the very same day with a refund form completed. The next week when I did not receive a refund, I called to follow up and the manager said he did not process the refund as yet. I called the next week and still no refund processed. It was brought to my attention last week Thursday that they tried to process the refund but filled in the incorrect Bank. I clearly specified that it is a Standard Bank account but somehow they paid it to an Absa account which is non existent. No-one follows up with me to check whether I have received it or not, but rather I have to keep calling them. I find this unacceptable. I have called the branch and head office several times and they cannot process a refund and seem to lack the proficiency to perform a refund correctly. 3 weeks now and I have not received my refund