Johannesburg Metro

Johannesburg Metro is such that once you receive a termination notice There is no delay before the utilities are turned off. Due to property sale in April 2025, I had to pay a deposit ogR4786.84 for a clearance certificate. on account ***.I regularly receive an invoice from them showing the credit. Despite three emails to Joburg connect to which no reply was elicited, the refund has still not materialized. What Is to Be DONE?