Unfair Business Practice

On the 4th of November, I went onto the dischem app and ordered a deodorant, processed the Transaction and paid for the item R185. Order number *** was the tracking number. Within a week I received an email from dischem saying that the item was out of stock. I was asked if I would like a refund which I agreed to. I received another email stating that it takes 14 days to process the refund and my funds will be paid into my account. I have been sending them emails querying where is my refund and up to date I have not received this amount . This is very disturbing considering when I ordered the item , my payment was deducted immediately but for the refund cannot be processed. This is totally unacceptable. I even provided my banking details to *** with all the relevant documentation requesting my refund.