Engen Hillcrest - Rude manager poor customer service

This morning I filled petrol at Engen Hillcrest as I have been for the last year and a half. The swipe machine didn't work & I was asked by the attendant to pay inside the store. I did go inside & join a queue. The lady at the till was not bothered by helping me to pay quickly & carried on taking the details of some guy while I was already 15 minutes late for work. I came out to tell the attendant I was leaving since I was late & the lady at the till had a don't care attitude of my problem. The owner then shows up to tell me 'if I m getting late for work it's my problem' and can't help me. So I told him I can't understand why another swipe machine can't be used to pay. Then they brought an Absa swipe machine when it could have been avoided. Engen Hilcrest garage has no appreciation for customers. The elderly white man is rude. They obviously don't care about customers only money. I only use this garage for FNB ebucks as I fill petrol regularly. FNB should be informed since they are giving them a bad name & didn't get an ebucks for the petrol I filled up this morning.