Rude teller

I went to Moratiwa Superspar to purchase a few items to as i was standing at kioski que deaf lady and guy asked me if its possible to withdraw from kioski i said yes because i have withdrew money from there many times but the condition is that you have to purchase items that are worth R50. Seeing that the deaf lady wanted to withdraw money but didnt have any items that make required R50 i offered to help them using my items plan was to give them cash to pay so the can withdraw. I explained to the guy she was with since he was interpreting and the lady agreed. Trouble started when we got to the teller SHE WAS SO RUDE TO US! CHASED AWAY LIKE DOGS! CAUSED UNNECESSARY SCENE! maybe she didnt have the money asked for however there was no need for her to be that rude! Started attacking me and the poor guy who was interpreting for no reason! I believe that she couldve been a little bit sensitive because 2customers united to help a deaf lady. Remember deaf and blind people dont have the privilledges that us abled people have. I hope this will be addressed properly because such behaviour is not acceptable at all.