Disgusting

I bought a car from them when I left the car sales it picked up a fault same time took it back they said dnt worry will fix it the booked the car in for repair n wen the car was fixed nva pay for if when I called they said I MST pay and will refund me I have all this on mail bt up till today , I haven't got my money every time I call the manager says working on it but it's lies cause about 2 months to work on it that's lies