Shocking refund service

When my daughter was admitted to Life St Vincent's on 10 July, they required full payment upfront from me, with an assurance that they would refund me if her stay was shorter than anticipated. I have been trying, since mid July, to get that refund. I have sent all the documents, endless email follow-ups, and made more than 10 calls to their refund centre. It is now 5 September, and my call today to the refund centre was as unhelpful and confused as ever. My frustration is extreme, and my financial anxiety acute. They have been sitting on R15 000 of my money now, for more than a month. This service is beyond inefficient.