POOR SERVICE

I bought Electricity voucher from my FNB App (which I have done for the past year or so) but to my surprise the token/receipt was allocated to an unknown municipality to me. I tried again with a smaller amount to see if something will be different, thinking maybe it's a system error but same results . The FNB system does not allow the user to select the name of the municipality when purchasing electricity. I queried with FNB and was told to contact that specific municipality. Then it means I have lost money, why can't FNB system ensure the correct municipality is linked to the correct meter number. Why do I have to contact the municipality to correct the issue.