Bad service from Engen Garage New road Midrand

Just had a really bad service from one of the engen garage new road in midrand employee. Went to get petro. I wait at the station waitng my turn to get service. 2 cars come after me. Maybe about 5 minutes later. The guys goes and service the cats that come after me. I dont say anything... Then when his done he comes to me. I ask him. Kanti you don't service the cars that come first. Like first come first servi. His like I don't know who come first. I ask him but u sow. I come aftet the vehicle that you served. Then his like I have to think for them. Because its only 2 of them working. I tell him. That is not my problem. Am not complaining about waiting. Am complaining about you servicing cars that come after me. THEN HIS LIKE I SHOULD BE GREAT FULL I ASK HIM. GREAT FOR WHAT. He say For him serving me.His like he will never service me again. The guy did not even care.