Lack of assistance

I have an issue with Capitec and their lack of assistance. My father-in-law died of Covid in July 2021. He had a Capitec account and receipt of the letter of executorship Capitec were contacted to arrange the closure of the account in February 2022. Their reference was ***5. On 4 March they advised “Kindly be advised that there are R12.83 in the account, Please advise if we can write this off and continue to close the account.” On 7 March I responded with the Estate Bank account details and requested that the account be closed. They failed to respond to this and a call to the call centre in July 2022 confirmed that account had been closed. Unbeknown to me my father-in-law sold a company which had this Capitec account listed with SARS for VAT purposes. The company claim a VAT refund in November 2022 and SARS paid this into the “closed” account. Every attempt to get this resolved with Capitec has resulted in sort and unprofessional responses. The tone of each email was that I was in effect wasting their time and they were in no way going to assist in resolving this issue. They now claim they never closed the account and that nobody gave a closure instruction. Reference *** On presenting them with the proof of the closure instruction their poor response was “We do not deal with estate accounts and did not close any estate account” SARS are also not prepared to reverse the payment without confirmation that the account has been closed (which it was in July 2022), so I am stuck with 2 parties who don’t want to assist nor understand. Clearly they are enjoying sitting on money which belongs to someone else, which in effect is nothing short of theft!