Disgusting service

My husband went in to get wipers at Goldwagen randpark ridge and it was raining. He asked for assistance to put the wipers on as he had an operation on his right hand. They refused to assist saying its not allowed.the person who attended to him was Isaiah.However the did it for him previously. He specifically went to Goldwagen as he thought he would be assisted like the last time. It 2as horrible customer service as they could see he was in a cast and still refused to assist. Is this how you treat a customer? What values do you have? I'm so disappointed with your service and horrible staff that lack empathy.