Accounts dont know what they doing

After placing an order 28/09/2017 with Afrihost for the LTE-A line and having to pay the R999.00 for the modem i found out that there service is terrible and called to cancel the delivery as it hasnt even gone to there couriers and informed me that the cancelation has been processed and that i will recieve a refund of my R999.00 within 24 to 48 hours. I called afrihost on the 02/10/2017 after 48 hours and no refund has been done yet and they infom me that they are still busy with it as there was an internal problem between there accounts and dispatch department and that they are working on it. Now this is terrible service that they cannot even credit me back the monies they owe me. Still fighting today 03/10/2017 for my credit 96hours business time.