Biometric booking at Standard bank

I have been trying for weeks to apply for my passport online and have my biometrics done at standard bank. My application was successful and money paid for the application however my frustration has come about where there is never an available slot at standard bank Kingsmead to have my biometrics done. My online DHA platform doesn’t even allow me to choose a later date. This is absolutely frustrating given the fact that I have already paid for this. I can never get through to the contact centre for assistance.