Poor client service

My account number 05438471003 at Matlosana at Matlosana Munisipality is in credit of amount of R15000 . On 9 April 2022 i send email to Mr Wise Selebano about my credit and documents.He said that he will look and that the credit of 15000 will be paid into my bank account.we sold our property at bosveld park in April 2022. Poor client service till up to 8 Oktober 2022. No money is paid upto to date