FNB to SANRAL public recipient

I need to close my SANRAL account. In order to do this I need to add SANRAL toll fees to my public recipients to pay a closing fee. I have tried multiple times with multiple references and I keep getting the same thing after I try to confirm " Own and/or Recipient reference incorrect" they are my references! How on earth can they be incorrect? I'm in a different country at the moment, so I can't just call or "pop in" to try sort this out. Banking is supposed to be easy, and there isn't even a "help" or "info" selection to tell me what I am doing incorrectly or how to fix it. Just keeps telling me it's incorrect.