Horrible service levels

Engen in Brighton Road, kraaifontein. Don't know Petrol attendants name as he did not have a name tag on. But I definitely remember that miserable face he sadly carried. Firstly I am not impressed with service given, as he gave me the wrong price of the oil, R30 more when I went inside to pay. He placed the oil in and did not put the cap back on. I even bought him a huge coke and not even a thank you. I know its not alot but atleast have basic manners to your clients! 3 days later the oil light went on, back to the garage, only to find out the cap was off. I am not impressed at all! You need to remind your staff to smile, we all have bad days. But we all need to smile! My car could of been damaged!!!