BAD SERVICE AND WORSE ATTITUDE

I went to fill up petrol at BP Spesbona Tractors cc in Paarl and the attendant with the name of ADRIAAN assisted me, ask me if I want oil and water checked, wash windows, etc. JOB WELL done, then I decided to tip him for EXCELLENT service then he went to lady at counter or window to assist with the transaction and she moved to the open door and shouted to him while she looked in my face as a customer or client. Joh I was shocked, haven't you sent your employees for training or even common knowledge to address an issue in a calm manner and even don't speak to another person the way you wouldn't want to be spoken to. SHE SHOUTED at him if he was a dog Infront of everyone. She also could've come to me and informed me of how the situation works with regards to tips. REALLY BAD SERVICE AND ATTITUDE from this lady.