ZEP Refund takes 6 months?

In September 2017 I assisted my employee with the online ZEP application. We answered one question wrong by mistake, and had to re-apply and pay the Visa fee again. Before I made the second payment the Call Centre assured me that the applicant can get the money back on the day of her appointment, being 4 November 2017. On the appointment day she managed to renew the ZEP, but had to queue the whole Saturday, only to be advised to come back on Monday. On Monday, 7 November she managed to ask for the refund only to be told that her account will be credited in two to three months! In other words, the payment dated 20 September 2017 will only be refunded by the end of January, meaning it takes 21 weeks for VFS to process a refund. Please can you not speed up the process?