Home affairs please help me.

Home affairs at Dobsonville, we went there to change the surnames of the kids in 2022 February 10. Till today 2023 May it is not done, we went there over 8 times to follow up, but the one and only woman that works there will just punch the ID number and tell us it is not done. I heard that this get done in over 6months and we have now been waiting for a whole year and 3months. I write this to ask for help because I need my kids certificates. Home affairs please help me.