Advance Auto Parts

I went into this location and talked with the salesperson and she told me that if I bought the part and it wasn't the problem then I could not get cash back but I could get store credit against the problem part but when I brought it back, she tried putting it on a card and had to call her manager to find out she was wrong.... I would give less than 1 star but 1 is the least.... very disappointed in management of this store and hope I can tell everyone I know