FNB Electricity option not available to certain customers

i opened this account in april 2020 and eversince i have had this account, i cannot buy electricity with the app nor online, i called the call centre and i was told that i need to call the municipality and thats it, whats strange though is that my brother, who stays in the same house and buys electricity for the same metre number can purchase electricity and he also banks with FNB, i asked the agent i spoke to and she just said that i need an SSD Code, what i am not understanding is that, why would the app or fnb online not say please enter SSD Code instead of the service is currently unavailable please try again later, i am now without electricity and i must drive out to go and look for electricity and yet i have an app and so called smart banking, i am not impressed with this, because then you are false advertising