Oil leaks again after was fixed

<br> I took my Chef Spark in for an Oil Leak (August) and they had to check the light that comes on and fades away. When I got my car back it had a massive stain on the front seat. First they argued with me that it is an old mark and it was my own fault... after a huge argument they eventually cleaned the mark. I got my car back and the mark was gone and the oil didn't leak anymore. After I got my car back it hat do go for a service again... they didn't even check to see when my service is due! When I got my car back the oil was over full and started leaking again and the oil light came on again and fades away. So here my problem just started over... Now I'm taking my car their again for the 3rd time 24/10/2015 all the way to Kolonnade to fix the same problem as the first. They don't want to lend me a car to do all my stops I have to sit and wait for my car it's not my fault my car broke again.... The workmanship is POOR at Barloworld Zambezi. They are costing me a lot of money and Time! <br> ???